Repository: phoenixframework/phoenix (elixir)

Issue:
Sockets do not reconnect after a short network disconnection
### Environment

* JS lib version (phoenix.js): 1.4.0
* Operating system: MocOS
* Browser: Chrome 70.0.3538.77

### Expected behavior
Sockets try to reconnect after short network disconnection (5-10 seconds).

### Actual behavior
Sockets remain disabled

### Debug results
`onConnClose` is called with `event.code === 1000` so `this.reconnectTimer.scheduleTimeout` is not be called

Pull request description:
Revert reconnect optimizations which introduced regressions
Fixes #3161

Patch:
diff --git a/assets/js/phoenix.js b/assets/js/phoenix.js
index de56fe015..df78c0dd8 100644
--- a/assets/js/phoenix.js
+++ b/assets/js/phoenix.js
@@ -840,7 +840,6 @@ export class Socket {
     this.flushSendBuffer()
     this.reconnectTimer.reset()
     this.resetHeartbeat()
-    this.resetChannelTimers()
     this.stateChangeCallbacks.open.forEach( callback => callback() )
   }
 
@@ -989,15 +988,6 @@ export class Socket {
       }
     })
   }
-
-  /**
-   * @private
-   */
-  resetChannelTimers() {
-    this.channels.forEach(channel => {
-      channel.rejoinTimer.restart()
-    })
-  }
 }
 
 
@@ -1358,31 +1348,18 @@ class Timer {
 
   reset(){
     this.tries = 0
-    this.clearTimer()
-  }
-
-  restart(){
-    const processing = this.timer !== null
-    this.reset()
-    if (processing){
-      this.scheduleTimeout()
-    }
+    clearTimeout(this.timer)
   }
 
   /**
    * Cancels any previous scheduleTimeout and schedules callback
    */
   scheduleTimeout(){
-    this.clearTimer()
+    clearTimeout(this.timer)
 
     this.timer = setTimeout(() => {
       this.tries = this.tries + 1
       this.callback()
     }, this.timerCalc(this.tries + 1))
   }
-
-  clearTimer() {
-    clearTimeout(this.timer)
-    this.timer = null
-  }
 }
diff --git a/installer/templates/phx_assets/phoenix.js b/installer/templates/phx_assets/phoenix.js
index ce4bdf108..d26df0cc2 100644
--- a/installer/templates/phx_assets/phoenix.js
+++ b/installer/templates/phx_assets/phoenix.js
@@ -1,1 +1,1 @@
-!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.Phoenix=t():e.Phoenix=t()}(this,function(){return function(e){var t={};function n(i){if(t[i])return t[i].exports;var o=t[i]={i:i,l:!1,exports:{}};return e[i].call(o.exports,o,o.exports,n),o.l=!0,o.exports}return n.m=e,n.c=t,n.d=function(e,t,i){n.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:i})},n.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},n.t=function(e,t){if(1&t&&(e=n(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var i=Object.create(null);if(n.r(i),Object.defineProperty(i,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var o in e)n.d(i,o,function(t){return e[t]}.bind(null,o));return i},n.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return n.d(t,"a",t),t},n.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},n.p="",n(n.s=0)}([function(e,t,n){(function(t){e.exports=t.Phoenix=n(2)}).call(this,n(1))},function(e,t){var n;n=function(){return this}();try{n=n||Function("return this")()||(0,eval)("this")}catch(e){"object"==typeof window&&(n=window)}e.exports=n},function(e,t,n){"use strict";function i(e){return function(e){if(Array.isArray(e)){for(var t=0,n=new Array(e.length);t<e.length;t++)n[t]=e[t];return n}}(e)||function(e){if(Symbol.iterator in Object(e)||"[object Arguments]"===Object.prototype.toString.call(e))return Array.from(e)}(e)||function(){throw new TypeError("Invalid attempt to spread non-iterable instance")}()}function o(e){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function r(e,t){return function(e){if(Array.isArray(e))return e}(e)||function(e,t){var n=[],i=!0,o=!1,r=void 0;try{for(var s,a=e[Symbol.iterator]();!(i=(s=a.next()).done)&&(n.push(s.value),!t||n.length!==t);i=!0);}catch(e){o=!0,r=e}finally{try{i||null==a.return||a.return()}finally{if(o)throw r}}return n}(e,t)||function(){throw new TypeError("Invalid attempt to destructure non-iterable instance")}()}function s(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function a(e,t){for(var n=0;n<t.length;n++){var i=t[n];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(e,i.key,i)}}function c(e,t,n){return t&&a(e.prototype,t),n&&a(e,n),e}n.r(t),n.d(t,"Channel",function(){return b}),n.d(t,"Socket",function(){return R}),n.d(t,"LongPoll",function(){return T}),n.d(t,"Ajax",function(){return C}),n.d(t,"Presence",function(){return S});var u="undefined"!=typeof self?self:null,h="undefined"!=typeof window?window:null,l=u||h||void 0,f={connecting:0,open:1,closing:2,closed:3},p=1e4,d={closed:"closed",errored:"errored",joined:"joined",joining:"joining",leaving:"leaving"},v={close:"phx_close",error:"phx_error",join:"phx_join",reply:"phx_reply",leave:"phx_leave"},y=[v.close,v.error,v.join,v.reply,v.leave],m={longpoll:"longpoll",websocket:"websocket"},g=function(e){if("function"==typeof e)return e;return function(){return e}},k=function(){function e(t,n,i,o){s(this,e),this.channel=t,this.event=n,this.payload=i||function(){return{}},this.receivedResp=null,this.timeout=o,this.timeoutTimer=null,this.recHooks=[],this.sent=!1}return c(e,[{key:"resend",value:function(e){this.timeout=e,this.reset(),this.send()}},{key:"send",value:function(){this.hasReceived("timeout")||(this.startTimeout(),this.sent=!0,this.channel.socket.push({topic:this.channel.topic,event:this.event,payload:this.payload(),ref:this.ref,join_ref:this.channel.joinRef()}))}},{key:"receive",value:function(e,t){return this.hasReceived(e)&&t(this.receivedResp.response),this.recHooks.push({status:e,callback:t}),this}},{key:"reset",value:function(){this.cancelRefEvent(),this.ref=null,this.refEvent=null,this.receivedResp=null,this.sent=!1}},{key:"matchReceive",value:function(e){var t=e.status,n=e.response;e.ref;this.recHooks.filter(function(e){return e.status===t}).forEach(function(e){return e.callback(n)})}},{key:"cancelRefEvent",value:function(){this.refEvent&&this.channel.off(this.refEvent)}},{key:"cancelTimeout",value:function(){clearTimeout(this.timeoutTimer),this.timeoutTimer=null}},{key:"startTimeout",value:function(){var e=this;this.timeoutTimer&&this.cancelTimeout(),this.ref=this.channel.socket.makeRef(),this.refEvent=this.channel.replyEventName(this.ref),this.channel.on(this.refEvent,function(t){e.cancelRefEvent(),e.cancelTimeout(),e.receivedResp=t,e.matchReceive(t)}),this.timeoutTimer=setTimeout(function(){e.trigger("timeout",{})},this.timeout)}},{key:"hasReceived",value:function(e){return this.receivedResp&&this.receivedResp.status===e}},{key:"trigger",value:function(e,t){this.channel.trigger(this.refEvent,{status:e,response:t})}}]),e}(),b=function(){function e(t,n,i){var o=this;s(this,e),this.state=d.closed,this.topic=t,this.params=g(n||{}),this.socket=i,this.bindings=[],this.bindingRef=0,this.timeout=this.socket.timeout,this.joinedOnce=!1,this.joinPush=new k(this,v.join,this.params,this.timeout),this.pushBuffer=[],this.rejoinTimer=new w(function(){return o.rejoinUntilConnected()},this.socket.reconnectAfterMs),this.joinPush.receive("ok",function(){o.state=d.joined,o.rejoinTimer.reset(),o.pushBuffer.forEach(function(e){return e.send()}),o.pushBuffer=[]}),this.onClose(function(){o.rejoinTimer.reset(),o.socket.hasLogger()&&o.socket.log("channel","close ".concat(o.topic," ").concat(o.joinRef())),o.state=d.closed,o.socket.remove(o)}),this.onError(function(e){o.isLeaving()||o.isClosed()||(o.socket.hasLogger()&&o.socket.log("channel","error ".concat(o.topic),e),o.state=d.errored,o.rejoinTimer.scheduleTimeout())}),this.joinPush.receive("timeout",function(){o.isJoining()&&(o.socket.hasLogger()&&o.socket.log("channel","timeout ".concat(o.topic," (").concat(o.joinRef(),")"),o.joinPush.timeout),new k(o,v.leave,g({}),o.timeout).send(),o.state=d.errored,o.joinPush.reset(),o.rejoinTimer.scheduleTimeout())}),this.on(v.reply,function(e,t){o.trigger(o.replyEventName(t),e)})}return c(e,[{key:"rejoinUntilConnected",value:function(){this.rejoinTimer.scheduleTimeout(),this.socket.isConnected()&&this.rejoin()}},{key:"join",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.timeout;if(this.joinedOnce)throw"tried to join multiple times. 'join' can only be called a single time per channel instance";return this.joinedOnce=!0,this.rejoin(e),this.joinPush}},{key:"onClose",value:function(e){this.on(v.close,e)}},{key:"onError",value:function(e){return this.on(v.error,function(t){return e(t)})}},{key:"on",value:function(e,t){var n=this.bindingRef++;return this.bindings.push({event:e,ref:n,callback:t}),n}},{key:"off",value:function(e,t){this.bindings=this.bindings.filter(function(n){return!(n.event===e&&(void 0===t||t===n.ref))})}},{key:"canPush",value:function(){return this.socket.isConnected()&&this.isJoined()}},{key:"push",value:function(e,t){var n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:this.timeout;if(!this.joinedOnce)throw"tried to push '".concat(e,"' to '").concat(this.topic,"' before joining. Use channel.join() before pushing events");var i=new k(this,e,function(){return t},n);return this.canPush()?i.send():(i.startTimeout(),this.pushBuffer.push(i)),i}},{key:"leave",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.timeout;this.state=d.leaving;var n=function(){e.socket.hasLogger()&&e.socket.log("channel","leave ".concat(e.topic)),e.trigger(v.close,"leave")},i=new k(this,v.leave,g({}),t);return i.receive("ok",function(){return n()}).receive("timeout",function(){return n()}),i.send(),this.canPush()||i.trigger("ok",{}),i}},{key:"onMessage",value:function(e,t,n){return t}},{key:"isLifecycleEvent",value:function(e){return y.indexOf(e)>=0}},{key:"isMember",value:function(e,t,n,i){return this.topic===e&&(!i||i===this.joinRef()||!this.isLifecycleEvent(t)||(this.socket.hasLogger()&&this.socket.log("channel","dropping outdated message",{topic:e,event:t,payload:n,joinRef:i}),!1))}},{key:"joinRef",value:function(){return this.joinPush.ref}},{key:"sendJoin",value:function(e){this.state=d.joining,this.joinPush.resend(e)}},{key:"rejoin",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.timeout;this.isLeaving()||this.sendJoin(e)}},{key:"trigger",value:function(e,t,n,i){var o=this.onMessage(e,t,n,i);if(t&&!o)throw"channel onMessage callbacks must return the payload, modified or unmodified";for(var r=0;r<this.bindings.length;r++){var s=this.bindings[r];s.event===e&&s.callback(o,n,i||this.joinRef())}}},{key:"replyEventName",value:function(e){return"chan_reply_".concat(e)}},{key:"isClosed",value:function(){return this.state===d.closed}},{key:"isErrored",value:function(){return this.state===d.errored}},{key:"isJoined",value:function(){return this.state===d.joined}},{key:"isJoining",value:function(){return this.state===d.joining}},{key:"isLeaving",value:function(){return this.state===d.leaving}}]),e}(),j={encode:function(e,t){var n=[e.join_ref,e.ref,e.topic,e.event,e.payload];return t(JSON.stringify(n))},decode:function(e,t){var n=r(JSON.parse(e),5);return t({join_ref:n[0],ref:n[1],topic:n[2],event:n[3],payload:n[4]})}},R=function(){function e(t){var n=this,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};s(this,e),this.stateChangeCallbacks={open:[],close:[],error:[],message:[]},this.channels=[],this.sendBuffer=[],this.ref=0,this.timeout=i.timeout||p,this.transport=i.transport||l.WebSocket||T,this.defaultEncoder=j.encode,this.defaultDecoder=j.decode,this.transport!==T?(this.encode=i.encode||this.defaultEncoder,this.decode=i.decode||this.defaultDecoder):(this.encode=this.defaultEncoder,this.decode=this.defaultDecoder),this.heartbeatIntervalMs=i.heartbeatIntervalMs||3e4,this.reconnectAfterMs=i.reconnectAfterMs||function(e){return[1e3,2e3,5e3,1e4][e-1]||1e4},this.logger=i.logger||null,this.longpollerTimeout=i.longpollerTimeout||2e4,this.params=g(i.params||{}),this.endPoint="".concat(t,"/").concat(m.websocket),this.heartbeatTimer=null,this.pendingHeartbeatRef=null,this.reconnectTimer=new w(function(){n.teardown(function(){return n.connect()})},this.reconnectAfterMs)}return c(e,[{key:"protocol",value:function(){return location.protocol.match(/^https/)?"wss":"ws"}},{key:"endPointURL",value:function(){var e=C.appendParams(C.appendParams(this.endPoint,this.params()),{vsn:"2.0.0"});return"/"!==e.charAt(0)?e:"/"===e.charAt(1)?"".concat(this.protocol(),":").concat(e):"".concat(this.protocol(),"://").concat(location.host).concat(e)}},{key:"disconnect",value:function(e,t,n){this.reconnectTimer.reset(),this.teardown(e,t,n)}},{key:"connect",value:function(e){var t=this;e&&(console&&console.log("passing params to connect is deprecated. Instead pass :params to the Socket constructor"),this.params=g(e)),this.conn||(this.conn=new this.transport(this.endPointURL()),this.conn.timeout=this.longpollerTimeout,this.conn.onopen=function(){return t.onConnOpen()},this.conn.onerror=function(e){return t.onConnError(e)},this.conn.onmessage=function(e){return t.onConnMessage(e)},this.conn.onclose=function(e){return t.onConnClose(e)})}},{key:"log",value:function(e,t,n){this.logger(e,t,n)}},{key:"hasLogger",value:function(){return null!==this.logger}},{key:"onOpen",value:function(e){this.stateChangeCallbacks.open.push(e)}},{key:"onClose",value:function(e){this.stateChangeCallbacks.close.push(e)}},{key:"onError",value:function(e){this.stateChangeCallbacks.error.push(e)}},{key:"onMessage",value:function(e){this.stateChangeCallbacks.message.push(e)}},{key:"onConnOpen",value:function(){this.hasLogger()&&this.log("transport","connected to ".concat(this.endPointURL())),this.flushSendBuffer(),this.reconnectTimer.reset(),this.resetHeartbeat(),this.resetChannelTimers(),this.stateChangeCallbacks.open.forEach(function(e){return e()})}},{key:"resetHeartbeat",value:function(){var e=this;this.conn.skipHeartbeat||(this.pendingHeartbeatRef=null,clearInterval(this.heartbeatTimer),this.heartbeatTimer=setInterval(function(){return e.sendHeartbeat()},this.heartbeatIntervalMs))}},{key:"teardown",value:function(e,t,n){this.conn&&(this.conn.onclose=function(){},t?this.conn.close(t,n||""):this.conn.close(),this.conn=null),e&&e()}},{key:"onConnClose",value:function(e){this.hasLogger()&&this.log("transport","close",e),this.triggerChanError(),clearInterval(this.heartbeatTimer),e&&1e3!==e.code&&this.reconnectTimer.scheduleTimeout(),this.stateChangeCallbacks.close.forEach(function(t){return t(e)})}},{key:"onConnError",value:function(e){this.hasLogger()&&this.log("transport",e),this.triggerChanError(),this.stateChangeCallbacks.error.forEach(function(t){return t(e)})}},{key:"triggerChanError",value:function(){this.channels.forEach(function(e){return e.trigger(v.error)})}},{key:"connectionState",value:function(){switch(this.conn&&this.conn.readyState){case f.connecting:return"connecting";case f.open:return"open";case f.closing:return"closing";default:return"closed"}}},{key:"isConnected",value:function(){return"open"===this.connectionState()}},{key:"remove",value:function(e){this.channels=this.channels.filter(function(t){return t.joinRef()!==e.joinRef()})}},{key:"channel",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},n=new b(e,t,this);return this.channels.push(n),n}},{key:"push",value:function(e){var t=this;if(this.hasLogger()){var n=e.topic,i=e.event,o=e.payload,r=e.ref,s=e.join_ref;this.log("push","".concat(n," ").concat(i," (").concat(s,", ").concat(r,")"),o)}this.isConnected()?this.encode(e,function(e){return t.conn.send(e)}):this.sendBuffer.push(function(){return t.encode(e,function(e){return t.conn.send(e)})})}},{key:"makeRef",value:function(){var e=this.ref+1;return e===this.ref?this.ref=0:this.ref=e,this.ref.toString()}},{key:"sendHeartbeat",value:function(){if(this.isConnected()){if(this.pendingHeartbeatRef)return this.pendingHeartbeatRef=null,this.hasLogger()&&this.log("transport","heartbeat timeout. Attempting to re-establish connection"),void this.conn.close(1e3,"hearbeat timeout");this.pendingHeartbeatRef=this.makeRef(),this.push({topic:"phoenix",event:"heartbeat",payload:{},ref:this.pendingHeartbeatRef})}}},{key:"flushSendBuffer",value:function(){this.isConnected()&&this.sendBuffer.length>0&&(this.sendBuffer.forEach(function(e){return e()}),this.sendBuffer=[])}},{key:"onConnMessage",value:function(e){var t=this;this.decode(e.data,function(e){var n=e.topic,i=e.event,o=e.payload,r=e.ref,s=e.join_ref;r&&r===t.pendingHeartbeatRef&&(t.pendingHeartbeatRef=null),t.hasLogger()&&t.log("receive","".concat(o.status||""," ").concat(n," ").concat(i," ").concat(r&&"("+r+")"||""),o);for(var a=0;a<t.channels.length;a++){var c=t.channels[a];c.isMember(n,i,o,s)&&c.trigger(i,o,r,s)}for(var u=0;u<t.stateChangeCallbacks.message.length;u++)t.stateChangeCallbacks.message[u](e)})}},{key:"resetChannelTimers",value:function(){this.channels.forEach(function(e){e.rejoinTimer.restart()})}}]),e}(),T=function(){function e(t){s(this,e),this.endPoint=null,this.token=null,this.skipHeartbeat=!0,this.onopen=function(){},this.onerror=function(){},this.onmessage=function(){},this.onclose=function(){},this.pollEndpoint=this.normalizeEndpoint(t),this.readyState=f.connecting,this.poll()}return c(e,[{key:"normalizeEndpoint",value:function(e){return e.replace("ws://","http://").replace("wss://","https://").replace(new RegExp("(.*)/"+m.websocket),"$1/"+m.longpoll)}},{key:"endpointURL",value:function(){return C.appendParams(this.pollEndpoint,{token:this.token})}},{key:"closeAndRetry",value:function(){this.close(),this.readyState=f.connecting}},{key:"ontimeout",value:function(){this.onerror("timeout"),this.closeAndRetry()}},{key:"poll",value:function(){var e=this;this.readyState!==f.open&&this.readyState!==f.connecting||C.request("GET",this.endpointURL(),"application/json",null,this.timeout,this.ontimeout.bind(this),function(t){if(t){var n=t.status,i=t.token,o=t.messages;e.token=i}else n=0;switch(n){case 200:o.forEach(function(t){return e.onmessage({data:t})}),e.poll();break;case 204:e.poll();break;case 410:e.readyState=f.open,e.onopen(),e.poll();break;case 0:case 500:e.onerror(),e.closeAndRetry();break;default:throw"unhandled poll status ".concat(n)}})}},{key:"send",value:function(e){var t=this;C.request("POST",this.endpointURL(),"application/json",e,this.timeout,this.onerror.bind(this,"timeout"),function(e){e&&200===e.status||(t.onerror(e&&e.status),t.closeAndRetry())})}},{key:"close",value:function(e,t){this.readyState=f.closed,this.onclose()}}]),e}(),C=function(){function e(){s(this,e)}return c(e,null,[{key:"request",value:function(e,t,n,i,o,r,s){if(l.XDomainRequest){var a=new XDomainRequest;this.xdomainRequest(a,e,t,i,o,r,s)}else{var c=l.XMLHttpRequest?new l.XMLHttpRequest:new ActiveXObject("Microsoft.XMLHTTP");this.xhrRequest(c,e,t,n,i,o,r,s)}}},{key:"xdomainRequest",value:function(e,t,n,i,o,r,s){var a=this;e.timeout=o,e.open(t,n),e.onload=function(){var t=a.parseJSON(e.responseText);s&&s(t)},r&&(e.ontimeout=r),e.onprogress=function(){},e.send(i)}},{key:"xhrRequest",value:function(e,t,n,i,o,r,s,a){var c=this;e.open(t,n,!0),e.timeout=r,e.setRequestHeader("Content-Type",i),e.onerror=function(){a&&a(null)},e.onreadystatechange=function(){if(e.readyState===c.states.complete&&a){var t=c.parseJSON(e.responseText);a(t)}},s&&(e.ontimeout=s),e.send(o)}},{key:"parseJSON",value:function(e){if(!e||""===e)return null;try{return JSON.parse(e)}catch(t){return console&&console.log("failed to parse JSON response",e),null}}},{key:"serialize",value:function(e,t){var n=[];for(var i in e)if(e.hasOwnProperty(i)){var r=t?"".concat(t,"[").concat(i,"]"):i,s=e[i];"object"===o(s)?n.push(this.serialize(s,r)):n.push(encodeURIComponent(r)+"="+encodeURIComponent(s))}return n.join("&")}},{key:"appendParams",value:function(e,t){if(0===Object.keys(t).length)return e;var n=e.match(/\?/)?"&":"?";return"".concat(e).concat(n).concat(this.serialize(t))}}]),e}();C.states={complete:4};var S=function(){function e(t){var n=this,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};s(this,e);var o=i.events||{state:"presence_state",diff:"presence_diff"};this.state={},this.pendingDiffs=[],this.channel=t,this.joinRef=null,this.caller={onJoin:function(){},onLeave:function(){},onSync:function(){}},this.channel.on(o.state,function(t){var i=n.caller,o=i.onJoin,r=i.onLeave,s=i.onSync;n.joinRef=n.channel.joinRef(),n.state=e.syncState(n.state,t,o,r),n.pendingDiffs.forEach(function(t){n.state=e.syncDiff(n.state,t,o,r)}),n.pendingDiffs=[],s()}),this.channel.on(o.diff,function(t){var i=n.caller,o=i.onJoin,r=i.onLeave,s=i.onSync;n.inPendingSyncState()?n.pendingDiffs.push(t):(n.state=e.syncDiff(n.state,t,o,r),s())})}return c(e,[{key:"onJoin",value:function(e){this.caller.onJoin=e}},{key:"onLeave",value:function(e){this.caller.onLeave=e}},{key:"onSync",value:function(e){this.caller.onSync=e}},{key:"list",value:function(t){return e.list(this.state,t)}},{key:"inPendingSyncState",value:function(){return!this.joinRef||this.joinRef!==this.channel.joinRef()}}],[{key:"syncState",value:function(e,t,n,i){var o=this,r=this.clone(e),s={},a={};return this.map(r,function(e,n){t[e]||(a[e]=n)}),this.map(t,function(e,t){var n=r[e];if(n){var i=t.metas.map(function(e){return e.phx_ref}),c=n.metas.map(function(e){return e.phx_ref}),u=t.metas.filter(function(e){return c.indexOf(e.phx_ref)<0}),h=n.metas.filter(function(e){return i.indexOf(e.phx_ref)<0});u.length>0&&(s[e]=t,s[e].metas=u),h.length>0&&(a[e]=o.clone(n),a[e].metas=h)}else s[e]=t}),this.syncDiff(r,{joins:s,leaves:a},n,i)}},{key:"syncDiff",value:function(e,t,n,o){var r=t.joins,s=t.leaves,a=this.clone(e);return n||(n=function(){}),o||(o=function(){}),this.map(r,function(e,t){var o=a[e];if(a[e]=t,o){var r,s=a[e].metas.map(function(e){return e.phx_ref}),c=o.metas.filter(function(e){return s.indexOf(e.phx_ref)<0});(r=a[e].metas).unshift.apply(r,i(c))}n(e,o,t)}),this.map(s,function(e,t){var n=a[e];if(n){var i=t.metas.map(function(e){return e.phx_ref});n.metas=n.metas.filter(function(e){return i.indexOf(e.phx_ref)<0}),o(e,n,t),0===n.metas.length&&delete a[e]}}),a}},{key:"list",value:function(e,t){return t||(t=function(e,t){return t}),this.map(e,function(e,n){return t(e,n)})}},{key:"map",value:function(e,t){return Object.getOwnPropertyNames(e).map(function(n){return t(n,e[n])})}},{key:"clone",value:function(e){return JSON.parse(JSON.stringify(e))}}]),e}(),w=function(){function e(t,n){s(this,e),this.callback=t,this.timerCalc=n,this.timer=null,this.tries=0}return c(e,[{key:"reset",value:function(){this.tries=0,this.clearTimer()}},{key:"restart",value:function(){var e=null!==this.timer;this.reset(),e&&this.scheduleTimeout()}},{key:"scheduleTimeout",value:function(){var e=this;this.clearTimer(),this.timer=setTimeout(function(){e.tries=e.tries+1,e.callback()},this.timerCalc(this.tries+1))}},{key:"clearTimer",value:function(){clearTimeout(this.timer),this.timer=null}}]),e}()}])});
\ No newline at end of file
+!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.Phoenix=t():e.Phoenix=t()}(this,function(){return function(e){var t={};function n(i){if(t[i])return t[i].exports;var o=t[i]={i:i,l:!1,exports:{}};return e[i].call(o.exports,o,o.exports,n),o.l=!0,o.exports}return n.m=e,n.c=t,n.d=function(e,t,i){n.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:i})},n.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},n.t=function(e,t){if(1&t&&(e=n(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var i=Object.create(null);if(n.r(i),Object.defineProperty(i,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var o in e)n.d(i,o,function(t){return e[t]}.bind(null,o));return i},n.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return n.d(t,"a",t),t},n.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},n.p="",n(n.s=0)}([function(e,t,n){(function(t){e.exports=t.Phoenix=n(2)}).call(this,n(1))},function(e,t){var n;n=function(){return this}();try{n=n||Function("return this")()||(0,eval)("this")}catch(e){"object"==typeof window&&(n=window)}e.exports=n},function(e,t,n){"use strict";function i(e){return function(e){if(Array.isArray(e)){for(var t=0,n=new Array(e.length);t<e.length;t++)n[t]=e[t];return n}}(e)||function(e){if(Symbol.iterator in Object(e)||"[object Arguments]"===Object.prototype.toString.call(e))return Array.from(e)}(e)||function(){throw new TypeError("Invalid attempt to spread non-iterable instance")}()}function o(e){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function r(e,t){return function(e){if(Array.isArray(e))return e}(e)||function(e,t){var n=[],i=!0,o=!1,r=void 0;try{for(var s,a=e[Symbol.iterator]();!(i=(s=a.next()).done)&&(n.push(s.value),!t||n.length!==t);i=!0);}catch(e){o=!0,r=e}finally{try{i||null==a.return||a.return()}finally{if(o)throw r}}return n}(e,t)||function(){throw new TypeError("Invalid attempt to destructure non-iterable instance")}()}function s(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function a(e,t){for(var n=0;n<t.length;n++){var i=t[n];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(e,i.key,i)}}function c(e,t,n){return t&&a(e.prototype,t),n&&a(e,n),e}n.r(t),n.d(t,"Channel",function(){return b}),n.d(t,"Socket",function(){return R}),n.d(t,"LongPoll",function(){return w}),n.d(t,"Ajax",function(){return C}),n.d(t,"Presence",function(){return S});var u="undefined"!=typeof self?self:null,h="undefined"!=typeof window?window:null,l=u||h||void 0,f={connecting:0,open:1,closing:2,closed:3},p=1e4,d={closed:"closed",errored:"errored",joined:"joined",joining:"joining",leaving:"leaving"},v={close:"phx_close",error:"phx_error",join:"phx_join",reply:"phx_reply",leave:"phx_leave"},y=[v.close,v.error,v.join,v.reply,v.leave],g={longpoll:"longpoll",websocket:"websocket"},m=function(e){if("function"==typeof e)return e;return function(){return e}},k=function(){function e(t,n,i,o){s(this,e),this.channel=t,this.event=n,this.payload=i||function(){return{}},this.receivedResp=null,this.timeout=o,this.timeoutTimer=null,this.recHooks=[],this.sent=!1}return c(e,[{key:"resend",value:function(e){this.timeout=e,this.reset(),this.send()}},{key:"send",value:function(){this.hasReceived("timeout")||(this.startTimeout(),this.sent=!0,this.channel.socket.push({topic:this.channel.topic,event:this.event,payload:this.payload(),ref:this.ref,join_ref:this.channel.joinRef()}))}},{key:"receive",value:function(e,t){return this.hasReceived(e)&&t(this.receivedResp.response),this.recHooks.push({status:e,callback:t}),this}},{key:"reset",value:function(){this.cancelRefEvent(),this.ref=null,this.refEvent=null,this.receivedResp=null,this.sent=!1}},{key:"matchReceive",value:function(e){var t=e.status,n=e.response;e.ref;this.recHooks.filter(function(e){return e.status===t}).forEach(function(e){return e.callback(n)})}},{key:"cancelRefEvent",value:function(){this.refEvent&&this.channel.off(this.refEvent)}},{key:"cancelTimeout",value:function(){clearTimeout(this.timeoutTimer),this.timeoutTimer=null}},{key:"startTimeout",value:function(){var e=this;this.timeoutTimer&&this.cancelTimeout(),this.ref=this.channel.socket.makeRef(),this.refEvent=this.channel.replyEventName(this.ref),this.channel.on(this.refEvent,function(t){e.cancelRefEvent(),e.cancelTimeout(),e.receivedResp=t,e.matchReceive(t)}),this.timeoutTimer=setTimeout(function(){e.trigger("timeout",{})},this.timeout)}},{key:"hasReceived",value:function(e){return this.receivedResp&&this.receivedResp.status===e}},{key:"trigger",value:function(e,t){this.channel.trigger(this.refEvent,{status:e,response:t})}}]),e}(),b=function(){function e(t,n,i){var o=this;s(this,e),this.state=d.closed,this.topic=t,this.params=m(n||{}),this.socket=i,this.bindings=[],this.bindingRef=0,this.timeout=this.socket.timeout,this.joinedOnce=!1,this.joinPush=new k(this,v.join,this.params,this.timeout),this.pushBuffer=[],this.rejoinTimer=new T(function(){return o.rejoinUntilConnected()},this.socket.reconnectAfterMs),this.joinPush.receive("ok",function(){o.state=d.joined,o.rejoinTimer.reset(),o.pushBuffer.forEach(function(e){return e.send()}),o.pushBuffer=[]}),this.onClose(function(){o.rejoinTimer.reset(),o.socket.hasLogger()&&o.socket.log("channel","close ".concat(o.topic," ").concat(o.joinRef())),o.state=d.closed,o.socket.remove(o)}),this.onError(function(e){o.isLeaving()||o.isClosed()||(o.socket.hasLogger()&&o.socket.log("channel","error ".concat(o.topic),e),o.state=d.errored,o.rejoinTimer.scheduleTimeout())}),this.joinPush.receive("timeout",function(){o.isJoining()&&(o.socket.hasLogger()&&o.socket.log("channel","timeout ".concat(o.topic," (").concat(o.joinRef(),")"),o.joinPush.timeout),new k(o,v.leave,m({}),o.timeout).send(),o.state=d.errored,o.joinPush.reset(),o.rejoinTimer.scheduleTimeout())}),this.on(v.reply,function(e,t){o.trigger(o.replyEventName(t),e)})}return c(e,[{key:"rejoinUntilConnected",value:function(){this.rejoinTimer.scheduleTimeout(),this.socket.isConnected()&&this.rejoin()}},{key:"join",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.timeout;if(this.joinedOnce)throw new Error("tried to join multiple times. 'join' can only be called a single time per channel instance");return this.joinedOnce=!0,this.rejoin(e),this.joinPush}},{key:"onClose",value:function(e){this.on(v.close,e)}},{key:"onError",value:function(e){return this.on(v.error,function(t){return e(t)})}},{key:"on",value:function(e,t){var n=this.bindingRef++;return this.bindings.push({event:e,ref:n,callback:t}),n}},{key:"off",value:function(e,t){this.bindings=this.bindings.filter(function(n){return!(n.event===e&&(void 0===t||t===n.ref))})}},{key:"canPush",value:function(){return this.socket.isConnected()&&this.isJoined()}},{key:"push",value:function(e,t){var n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:this.timeout;if(!this.joinedOnce)throw new Error("tried to push '".concat(e,"' to '").concat(this.topic,"' before joining. Use channel.join() before pushing events"));var i=new k(this,e,function(){return t},n);return this.canPush()?i.send():(i.startTimeout(),this.pushBuffer.push(i)),i}},{key:"leave",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.timeout;this.state=d.leaving;var n=function(){e.socket.hasLogger()&&e.socket.log("channel","leave ".concat(e.topic)),e.trigger(v.close,"leave")},i=new k(this,v.leave,m({}),t);return i.receive("ok",function(){return n()}).receive("timeout",function(){return n()}),i.send(),this.canPush()||i.trigger("ok",{}),i}},{key:"onMessage",value:function(e,t,n){return t}},{key:"isLifecycleEvent",value:function(e){return y.indexOf(e)>=0}},{key:"isMember",value:function(e,t,n,i){return this.topic===e&&(!i||i===this.joinRef()||!this.isLifecycleEvent(t)||(this.socket.hasLogger()&&this.socket.log("channel","dropping outdated message",{topic:e,event:t,payload:n,joinRef:i}),!1))}},{key:"joinRef",value:function(){return this.joinPush.ref}},{key:"sendJoin",value:function(e){this.state=d.joining,this.joinPush.resend(e)}},{key:"rejoin",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.timeout;this.isLeaving()||this.sendJoin(e)}},{key:"trigger",value:function(e,t,n,i){var o=this.onMessage(e,t,n,i);if(t&&!o)throw new Error("channel onMessage callbacks must return the payload, modified or unmodified");for(var r=0;r<this.bindings.length;r++){var s=this.bindings[r];s.event===e&&s.callback(o,n,i||this.joinRef())}}},{key:"replyEventName",value:function(e){return"chan_reply_".concat(e)}},{key:"isClosed",value:function(){return this.state===d.closed}},{key:"isErrored",value:function(){return this.state===d.errored}},{key:"isJoined",value:function(){return this.state===d.joined}},{key:"isJoining",value:function(){return this.state===d.joining}},{key:"isLeaving",value:function(){return this.state===d.leaving}}]),e}(),j={encode:function(e,t){var n=[e.join_ref,e.ref,e.topic,e.event,e.payload];return t(JSON.stringify(n))},decode:function(e,t){var n=r(JSON.parse(e),5);return t({join_ref:n[0],ref:n[1],topic:n[2],event:n[3],payload:n[4]})}},R=function(){function e(t){var n=this,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};s(this,e),this.stateChangeCallbacks={open:[],close:[],error:[],message:[]},this.channels=[],this.sendBuffer=[],this.ref=0,this.timeout=i.timeout||p,this.transport=i.transport||l.WebSocket||w,this.defaultEncoder=j.encode,this.defaultDecoder=j.decode,this.transport!==w?(this.encode=i.encode||this.defaultEncoder,this.decode=i.decode||this.defaultDecoder):(this.encode=this.defaultEncoder,this.decode=this.defaultDecoder),this.heartbeatIntervalMs=i.heartbeatIntervalMs||3e4,this.reconnectAfterMs=i.reconnectAfterMs||function(e){return[1e3,2e3,5e3,1e4][e-1]||1e4},this.logger=i.logger||null,this.longpollerTimeout=i.longpollerTimeout||2e4,this.params=m(i.params||{}),this.endPoint="".concat(t,"/").concat(g.websocket),this.heartbeatTimer=null,this.pendingHeartbeatRef=null,this.reconnectTimer=new T(function(){n.teardown(function(){return n.connect()})},this.reconnectAfterMs)}return c(e,[{key:"protocol",value:function(){return location.protocol.match(/^https/)?"wss":"ws"}},{key:"endPointURL",value:function(){var e=C.appendParams(C.appendParams(this.endPoint,this.params()),{vsn:"2.0.0"});return"/"!==e.charAt(0)?e:"/"===e.charAt(1)?"".concat(this.protocol(),":").concat(e):"".concat(this.protocol(),"://").concat(location.host).concat(e)}},{key:"disconnect",value:function(e,t,n){this.reconnectTimer.reset(),this.teardown(e,t,n)}},{key:"connect",value:function(e){var t=this;e&&(console&&console.log("passing params to connect is deprecated. Instead pass :params to the Socket constructor"),this.params=m(e)),this.conn||(this.conn=new this.transport(this.endPointURL()),this.conn.timeout=this.longpollerTimeout,this.conn.onopen=function(){return t.onConnOpen()},this.conn.onerror=function(e){return t.onConnError(e)},this.conn.onmessage=function(e){return t.onConnMessage(e)},this.conn.onclose=function(e){return t.onConnClose(e)})}},{key:"log",value:function(e,t,n){this.logger(e,t,n)}},{key:"hasLogger",value:function(){return null!==this.logger}},{key:"onOpen",value:function(e){this.stateChangeCallbacks.open.push(e)}},{key:"onClose",value:function(e){this.stateChangeCallbacks.close.push(e)}},{key:"onError",value:function(e){this.stateChangeCallbacks.error.push(e)}},{key:"onMessage",value:function(e){this.stateChangeCallbacks.message.push(e)}},{key:"onConnOpen",value:function(){this.hasLogger()&&this.log("transport","connected to ".concat(this.endPointURL())),this.flushSendBuffer(),this.reconnectTimer.reset(),this.resetHeartbeat(),this.stateChangeCallbacks.open.forEach(function(e){return e()})}},{key:"resetHeartbeat",value:function(){var e=this;this.conn.skipHeartbeat||(this.pendingHeartbeatRef=null,clearInterval(this.heartbeatTimer),this.heartbeatTimer=setInterval(function(){return e.sendHeartbeat()},this.heartbeatIntervalMs))}},{key:"teardown",value:function(e,t,n){this.conn&&(this.conn.onclose=function(){},t?this.conn.close(t,n||""):this.conn.close(),this.conn=null),e&&e()}},{key:"onConnClose",value:function(e){this.hasLogger()&&this.log("transport","close",e),this.triggerChanError(),clearInterval(this.heartbeatTimer),e&&1e3!==e.code&&this.reconnectTimer.scheduleTimeout(),this.stateChangeCallbacks.close.forEach(function(t){return t(e)})}},{key:"onConnError",value:function(e){this.hasLogger()&&this.log("transport",e),this.triggerChanError(),this.stateChangeCallbacks.error.forEach(function(t){return t(e)})}},{key:"triggerChanError",value:function(){this.channels.forEach(function(e){return e.trigger(v.error)})}},{key:"connectionState",value:function(){switch(this.conn&&this.conn.readyState){case f.connecting:return"connecting";case f.open:return"open";case f.closing:return"closing";default:return"closed"}}},{key:"isConnected",value:function(){return"open"===this.connectionState()}},{key:"remove",value:function(e){this.channels=this.channels.filter(function(t){return t.joinRef()!==e.joinRef()})}},{key:"channel",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},n=new b(e,t,this);return this.channels.push(n),n}},{key:"push",value:function(e){var t=this;if(this.hasLogger()){var n=e.topic,i=e.event,o=e.payload,r=e.ref,s=e.join_ref;this.log("push","".concat(n," ").concat(i," (").concat(s,", ").concat(r,")"),o)}this.isConnected()?this.encode(e,function(e){return t.conn.send(e)}):this.sendBuffer.push(function(){return t.encode(e,function(e){return t.conn.send(e)})})}},{key:"makeRef",value:function(){var e=this.ref+1;return e===this.ref?this.ref=0:this.ref=e,this.ref.toString()}},{key:"sendHeartbeat",value:function(){if(this.isConnected()){if(this.pendingHeartbeatRef)return this.pendingHeartbeatRef=null,this.hasLogger()&&this.log("transport","heartbeat timeout. Attempting to re-establish connection"),void this.conn.close(1e3,"hearbeat timeout");this.pendingHeartbeatRef=this.makeRef(),this.push({topic:"phoenix",event:"heartbeat",payload:{},ref:this.pendingHeartbeatRef})}}},{key:"flushSendBuffer",value:function(){this.isConnected()&&this.sendBuffer.length>0&&(this.sendBuffer.forEach(function(e){return e()}),this.sendBuffer=[])}},{key:"onConnMessage",value:function(e){var t=this;this.decode(e.data,function(e){var n=e.topic,i=e.event,o=e.payload,r=e.ref,s=e.join_ref;r&&r===t.pendingHeartbeatRef&&(t.pendingHeartbeatRef=null),t.hasLogger()&&t.log("receive","".concat(o.status||""," ").concat(n," ").concat(i," ").concat(r&&"("+r+")"||""),o);for(var a=0;a<t.channels.length;a++){var c=t.channels[a];c.isMember(n,i,o,s)&&c.trigger(i,o,r,s)}for(var u=0;u<t.stateChangeCallbacks.message.length;u++)t.stateChangeCallbacks.message[u](e)})}}]),e}(),w=function(){function e(t){s(this,e),this.endPoint=null,this.token=null,this.skipHeartbeat=!0,this.onopen=function(){},this.onerror=function(){},this.onmessage=function(){},this.onclose=function(){},this.pollEndpoint=this.normalizeEndpoint(t),this.readyState=f.connecting,this.poll()}return c(e,[{key:"normalizeEndpoint",value:function(e){return e.replace("ws://","http://").replace("wss://","https://").replace(new RegExp("(.*)/"+g.websocket),"$1/"+g.longpoll)}},{key:"endpointURL",value:function(){return C.appendParams(this.pollEndpoint,{token:this.token})}},{key:"closeAndRetry",value:function(){this.close(),this.readyState=f.connecting}},{key:"ontimeout",value:function(){this.onerror("timeout"),this.closeAndRetry()}},{key:"poll",value:function(){var e=this;this.readyState!==f.open&&this.readyState!==f.connecting||C.request("GET",this.endpointURL(),"application/json",null,this.timeout,this.ontimeout.bind(this),function(t){if(t){var n=t.status,i=t.token,o=t.messages;e.token=i}else n=0;switch(n){case 200:o.forEach(function(t){return e.onmessage({data:t})}),e.poll();break;case 204:e.poll();break;case 410:e.readyState=f.open,e.onopen(),e.poll();break;case 0:case 500:e.onerror(),e.closeAndRetry();break;default:throw new Error("unhandled poll status ".concat(n))}})}},{key:"send",value:function(e){var t=this;C.request("POST",this.endpointURL(),"application/json",e,this.timeout,this.onerror.bind(this,"timeout"),function(e){e&&200===e.status||(t.onerror(e&&e.status),t.closeAndRetry())})}},{key:"close",value:function(e,t){this.readyState=f.closed,this.onclose()}}]),e}(),C=function(){function e(){s(this,e)}return c(e,null,[{key:"request",value:function(e,t,n,i,o,r,s){if(l.XDomainRequest){var a=new XDomainRequest;this.xdomainRequest(a,e,t,i,o,r,s)}else{var c=l.XMLHttpRequest?new l.XMLHttpRequest:new ActiveXObject("Microsoft.XMLHTTP");this.xhrRequest(c,e,t,n,i,o,r,s)}}},{key:"xdomainRequest",value:function(e,t,n,i,o,r,s){var a=this;e.timeout=o,e.open(t,n),e.onload=function(){var t=a.parseJSON(e.responseText);s&&s(t)},r&&(e.ontimeout=r),e.onprogress=function(){},e.send(i)}},{key:"xhrRequest",value:function(e,t,n,i,o,r,s,a){var c=this;e.open(t,n,!0),e.timeout=r,e.setRequestHeader("Content-Type",i),e.onerror=function(){a&&a(null)},e.onreadystatechange=function(){if(e.readyState===c.states.complete&&a){var t=c.parseJSON(e.responseText);a(t)}},s&&(e.ontimeout=s),e.send(o)}},{key:"parseJSON",value:function(e){if(!e||""===e)return null;try{return JSON.parse(e)}catch(t){return console&&console.log("failed to parse JSON response",e),null}}},{key:"serialize",value:function(e,t){var n=[];for(var i in e)if(e.hasOwnProperty(i)){var r=t?"".concat(t,"[").concat(i,"]"):i,s=e[i];"object"===o(s)?n.push(this.serialize(s,r)):n.push(encodeURIComponent(r)+"="+encodeURIComponent(s))}return n.join("&")}},{key:"appendParams",value:function(e,t){if(0===Object.keys(t).length)return e;var n=e.match(/\?/)?"&":"?";return"".concat(e).concat(n).concat(this.serialize(t))}}]),e}();C.states={complete:4};var S=function(){function e(t){var n=this,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};s(this,e);var o=i.events||{state:"presence_state",diff:"presence_diff"};this.state={},this.pendingDiffs=[],this.channel=t,this.joinRef=null,this.caller={onJoin:function(){},onLeave:function(){},onSync:function(){}},this.channel.on(o.state,function(t){var i=n.caller,o=i.onJoin,r=i.onLeave,s=i.onSync;n.joinRef=n.channel.joinRef(),n.state=e.syncState(n.state,t,o,r),n.pendingDiffs.forEach(function(t){n.state=e.syncDiff(n.state,t,o,r)}),n.pendingDiffs=[],s()}),this.channel.on(o.diff,function(t){var i=n.caller,o=i.onJoin,r=i.onLeave,s=i.onSync;n.inPendingSyncState()?n.pendingDiffs.push(t):(n.state=e.syncDiff(n.state,t,o,r),s())})}return c(e,[{key:"onJoin",value:function(e){this.caller.onJoin=e}},{key:"onLeave",value:function(e){this.caller.onLeave=e}},{key:"onSync",value:function(e){this.caller.onSync=e}},{key:"list",value:function(t){return e.list(this.state,t)}},{key:"inPendingSyncState",value:function(){return!this.joinRef||this.joinRef!==this.channel.joinRef()}}],[{key:"syncState",value:function(e,t,n,i){var o=this,r=this.clone(e),s={},a={};return this.map(r,function(e,n){t[e]||(a[e]=n)}),this.map(t,function(e,t){var n=r[e];if(n){var i=t.metas.map(function(e){return e.phx_ref}),c=n.metas.map(function(e){return e.phx_ref}),u=t.metas.filter(function(e){return c.indexOf(e.phx_ref)<0}),h=n.metas.filter(function(e){return i.indexOf(e.phx_ref)<0});u.length>0&&(s[e]=t,s[e].metas=u),h.length>0&&(a[e]=o.clone(n),a[e].metas=h)}else s[e]=t}),this.syncDiff(r,{joins:s,leaves:a},n,i)}},{key:"syncDiff",value:function(e,t,n,o){var r=t.joins,s=t.leaves,a=this.clone(e);return n||(n=function(){}),o||(o=function(){}),this.map(r,function(e,t){var o=a[e];if(a[e]=t,o){var r,s=a[e].metas.map(function(e){return e.phx_ref}),c=o.metas.filter(function(e){return s.indexOf(e.phx_ref)<0});(r=a[e].metas).unshift.apply(r,i(c))}n(e,o,t)}),this.map(s,function(e,t){var n=a[e];if(n){var i=t.metas.map(function(e){return e.phx_ref});n.metas=n.metas.filter(function(e){return i.indexOf(e.phx_ref)<0}),o(e,n,t),0===n.metas.length&&delete a[e]}}),a}},{key:"list",value:function(e,t){return t||(t=function(e,t){return t}),this.map(e,function(e,n){return t(e,n)})}},{key:"map",value:function(e,t){return Object.getOwnPropertyNames(e).map(function(n){return t(n,e[n])})}},{key:"clone",value:function(e){return JSON.parse(JSON.stringify(e))}}]),e}(),T=function(){function e(t,n){s(this,e),this.callback=t,this.timerCalc=n,this.timer=null,this.tries=0}return c(e,[{key:"reset",value:function(){this.tries=0,clearTimeout(this.timer)}},{key:"scheduleTimeout",value:function(){var e=this;clearTimeout(this.timer),this.timer=setTimeout(function(){e.tries=e.tries+1,e.callback()},this.timerCalc(this.tries+1))}}]),e}()}])});
\ No newline at end of file
diff --git a/priv/static/phoenix.js b/priv/static/phoenix.js
index ce4bdf108..d26df0cc2 100644
--- a/priv/static/phoenix.js
+++ b/priv/static/phoenix.js
@@ -1,1 +1,1 @@
-!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.Phoenix=t():e.Phoenix=t()}(this,function(){return function(e){var t={};function n(i){if(t[i])return t[i].exports;var o=t[i]={i:i,l:!1,exports:{}};return e[i].call(o.exports,o,o.exports,n),o.l=!0,o.exports}return n.m=e,n.c=t,n.d=function(e,t,i){n.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:i})},n.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},n.t=function(e,t){if(1&t&&(e=n(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var i=Object.create(null);if(n.r(i),Object.defineProperty(i,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var o in e)n.d(i,o,function(t){return e[t]}.bind(null,o));return i},n.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return n.d(t,"a",t),t},n.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},n.p="",n(n.s=0)}([function(e,t,n){(function(t){e.exports=t.Phoenix=n(2)}).call(this,n(1))},function(e,t){var n;n=function(){return this}();try{n=n||Function("return this")()||(0,eval)("this")}catch(e){"object"==typeof window&&(n=window)}e.exports=n},function(e,t,n){"use strict";function i(e){return function(e){if(Array.isArray(e)){for(var t=0,n=new Array(e.length);t<e.length;t++)n[t]=e[t];return n}}(e)||function(e){if(Symbol.iterator in Object(e)||"[object Arguments]"===Object.prototype.toString.call(e))return Array.from(e)}(e)||function(){throw new TypeError("Invalid attempt to spread non-iterable instance")}()}function o(e){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function r(e,t){return function(e){if(Array.isArray(e))return e}(e)||function(e,t){var n=[],i=!0,o=!1,r=void 0;try{for(var s,a=e[Symbol.iterator]();!(i=(s=a.next()).done)&&(n.push(s.value),!t||n.length!==t);i=!0);}catch(e){o=!0,r=e}finally{try{i||null==a.return||a.return()}finally{if(o)throw r}}return n}(e,t)||function(){throw new TypeError("Invalid attempt to destructure non-iterable instance")}()}function s(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function a(e,t){for(var n=0;n<t.length;n++){var i=t[n];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(e,i.key,i)}}function c(e,t,n){return t&&a(e.prototype,t),n&&a(e,n),e}n.r(t),n.d(t,"Channel",function(){return b}),n.d(t,"Socket",function(){return R}),n.d(t,"LongPoll",function(){return T}),n.d(t,"Ajax",function(){return C}),n.d(t,"Presence",function(){return S});var u="undefined"!=typeof self?self:null,h="undefined"!=typeof window?window:null,l=u||h||void 0,f={connecting:0,open:1,closing:2,closed:3},p=1e4,d={closed:"closed",errored:"errored",joined:"joined",joining:"joining",leaving:"leaving"},v={close:"phx_close",error:"phx_error",join:"phx_join",reply:"phx_reply",leave:"phx_leave"},y=[v.close,v.error,v.join,v.reply,v.leave],m={longpoll:"longpoll",websocket:"websocket"},g=function(e){if("function"==typeof e)return e;return function(){return e}},k=function(){function e(t,n,i,o){s(this,e),this.channel=t,this.event=n,this.payload=i||function(){return{}},this.receivedResp=null,this.timeout=o,this.timeoutTimer=null,this.recHooks=[],this.sent=!1}return c(e,[{key:"resend",value:function(e){this.timeout=e,this.reset(),this.send()}},{key:"send",value:function(){this.hasReceived("timeout")||(this.startTimeout(),this.sent=!0,this.channel.socket.push({topic:this.channel.topic,event:this.event,payload:this.payload(),ref:this.ref,join_ref:this.channel.joinRef()}))}},{key:"receive",value:function(e,t){return this.hasReceived(e)&&t(this.receivedResp.response),this.recHooks.push({status:e,callback:t}),this}},{key:"reset",value:function(){this.cancelRefEvent(),this.ref=null,this.refEvent=null,this.receivedResp=null,this.sent=!1}},{key:"matchReceive",value:function(e){var t=e.status,n=e.response;e.ref;this.recHooks.filter(function(e){return e.status===t}).forEach(function(e){return e.callback(n)})}},{key:"cancelRefEvent",value:function(){this.refEvent&&this.channel.off(this.refEvent)}},{key:"cancelTimeout",value:function(){clearTimeout(this.timeoutTimer),this.timeoutTimer=null}},{key:"startTimeout",value:function(){var e=this;this.timeoutTimer&&this.cancelTimeout(),this.ref=this.channel.socket.makeRef(),this.refEvent=this.channel.replyEventName(this.ref),this.channel.on(this.refEvent,function(t){e.cancelRefEvent(),e.cancelTimeout(),e.receivedResp=t,e.matchReceive(t)}),this.timeoutTimer=setTimeout(function(){e.trigger("timeout",{})},this.timeout)}},{key:"hasReceived",value:function(e){return this.receivedResp&&this.receivedResp.status===e}},{key:"trigger",value:function(e,t){this.channel.trigger(this.refEvent,{status:e,response:t})}}]),e}(),b=function(){function e(t,n,i){var o=this;s(this,e),this.state=d.closed,this.topic=t,this.params=g(n||{}),this.socket=i,this.bindings=[],this.bindingRef=0,this.timeout=this.socket.timeout,this.joinedOnce=!1,this.joinPush=new k(this,v.join,this.params,this.timeout),this.pushBuffer=[],this.rejoinTimer=new w(function(){return o.rejoinUntilConnected()},this.socket.reconnectAfterMs),this.joinPush.receive("ok",function(){o.state=d.joined,o.rejoinTimer.reset(),o.pushBuffer.forEach(function(e){return e.send()}),o.pushBuffer=[]}),this.onClose(function(){o.rejoinTimer.reset(),o.socket.hasLogger()&&o.socket.log("channel","close ".concat(o.topic," ").concat(o.joinRef())),o.state=d.closed,o.socket.remove(o)}),this.onError(function(e){o.isLeaving()||o.isClosed()||(o.socket.hasLogger()&&o.socket.log("channel","error ".concat(o.topic),e),o.state=d.errored,o.rejoinTimer.scheduleTimeout())}),this.joinPush.receive("timeout",function(){o.isJoining()&&(o.socket.hasLogger()&&o.socket.log("channel","timeout ".concat(o.topic," (").concat(o.joinRef(),")"),o.joinPush.timeout),new k(o,v.leave,g({}),o.timeout).send(),o.state=d.errored,o.joinPush.reset(),o.rejoinTimer.scheduleTimeout())}),this.on(v.reply,function(e,t){o.trigger(o.replyEventName(t),e)})}return c(e,[{key:"rejoinUntilConnected",value:function(){this.rejoinTimer.scheduleTimeout(),this.socket.isConnected()&&this.rejoin()}},{key:"join",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.timeout;if(this.joinedOnce)throw"tried to join multiple times. 'join' can only be called a single time per channel instance";return this.joinedOnce=!0,this.rejoin(e),this.joinPush}},{key:"onClose",value:function(e){this.on(v.close,e)}},{key:"onError",value:function(e){return this.on(v.error,function(t){return e(t)})}},{key:"on",value:function(e,t){var n=this.bindingRef++;return this.bindings.push({event:e,ref:n,callback:t}),n}},{key:"off",value:function(e,t){this.bindings=this.bindings.filter(function(n){return!(n.event===e&&(void 0===t||t===n.ref))})}},{key:"canPush",value:function(){return this.socket.isConnected()&&this.isJoined()}},{key:"push",value:function(e,t){var n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:this.timeout;if(!this.joinedOnce)throw"tried to push '".concat(e,"' to '").concat(this.topic,"' before joining. Use channel.join() before pushing events");var i=new k(this,e,function(){return t},n);return this.canPush()?i.send():(i.startTimeout(),this.pushBuffer.push(i)),i}},{key:"leave",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.timeout;this.state=d.leaving;var n=function(){e.socket.hasLogger()&&e.socket.log("channel","leave ".concat(e.topic)),e.trigger(v.close,"leave")},i=new k(this,v.leave,g({}),t);return i.receive("ok",function(){return n()}).receive("timeout",function(){return n()}),i.send(),this.canPush()||i.trigger("ok",{}),i}},{key:"onMessage",value:function(e,t,n){return t}},{key:"isLifecycleEvent",value:function(e){return y.indexOf(e)>=0}},{key:"isMember",value:function(e,t,n,i){return this.topic===e&&(!i||i===this.joinRef()||!this.isLifecycleEvent(t)||(this.socket.hasLogger()&&this.socket.log("channel","dropping outdated message",{topic:e,event:t,payload:n,joinRef:i}),!1))}},{key:"joinRef",value:function(){return this.joinPush.ref}},{key:"sendJoin",value:function(e){this.state=d.joining,this.joinPush.resend(e)}},{key:"rejoin",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.timeout;this.isLeaving()||this.sendJoin(e)}},{key:"trigger",value:function(e,t,n,i){var o=this.onMessage(e,t,n,i);if(t&&!o)throw"channel onMessage callbacks must return the payload, modified or unmodified";for(var r=0;r<this.bindings.length;r++){var s=this.bindings[r];s.event===e&&s.callback(o,n,i||this.joinRef())}}},{key:"replyEventName",value:function(e){return"chan_reply_".concat(e)}},{key:"isClosed",value:function(){return this.state===d.closed}},{key:"isErrored",value:function(){return this.state===d.errored}},{key:"isJoined",value:function(){return this.state===d.joined}},{key:"isJoining",value:function(){return this.state===d.joining}},{key:"isLeaving",value:function(){return this.state===d.leaving}}]),e}(),j={encode:function(e,t){var n=[e.join_ref,e.ref,e.topic,e.event,e.payload];return t(JSON.stringify(n))},decode:function(e,t){var n=r(JSON.parse(e),5);return t({join_ref:n[0],ref:n[1],topic:n[2],event:n[3],payload:n[4]})}},R=function(){function e(t){var n=this,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};s(this,e),this.stateChangeCallbacks={open:[],close:[],error:[],message:[]},this.channels=[],this.sendBuffer=[],this.ref=0,this.timeout=i.timeout||p,this.transport=i.transport||l.WebSocket||T,this.defaultEncoder=j.encode,this.defaultDecoder=j.decode,this.transport!==T?(this.encode=i.encode||this.defaultEncoder,this.decode=i.decode||this.defaultDecoder):(this.encode=this.defaultEncoder,this.decode=this.defaultDecoder),this.heartbeatIntervalMs=i.heartbeatIntervalMs||3e4,this.reconnectAfterMs=i.reconnectAfterMs||function(e){return[1e3,2e3,5e3,1e4][e-1]||1e4},this.logger=i.logger||null,this.longpollerTimeout=i.longpollerTimeout||2e4,this.params=g(i.params||{}),this.endPoint="".concat(t,"/").concat(m.websocket),this.heartbeatTimer=null,this.pendingHeartbeatRef=null,this.reconnectTimer=new w(function(){n.teardown(function(){return n.connect()})},this.reconnectAfterMs)}return c(e,[{key:"protocol",value:function(){return location.protocol.match(/^https/)?"wss":"ws"}},{key:"endPointURL",value:function(){var e=C.appendParams(C.appendParams(this.endPoint,this.params()),{vsn:"2.0.0"});return"/"!==e.charAt(0)?e:"/"===e.charAt(1)?"".concat(this.protocol(),":").concat(e):"".concat(this.protocol(),"://").concat(location.host).concat(e)}},{key:"disconnect",value:function(e,t,n){this.reconnectTimer.reset(),this.teardown(e,t,n)}},{key:"connect",value:function(e){var t=this;e&&(console&&console.log("passing params to connect is deprecated. Instead pass :params to the Socket constructor"),this.params=g(e)),this.conn||(this.conn=new this.transport(this.endPointURL()),this.conn.timeout=this.longpollerTimeout,this.conn.onopen=function(){return t.onConnOpen()},this.conn.onerror=function(e){return t.onConnError(e)},this.conn.onmessage=function(e){return t.onConnMessage(e)},this.conn.onclose=function(e){return t.onConnClose(e)})}},{key:"log",value:function(e,t,n){this.logger(e,t,n)}},{key:"hasLogger",value:function(){return null!==this.logger}},{key:"onOpen",value:function(e){this.stateChangeCallbacks.open.push(e)}},{key:"onClose",value:function(e){this.stateChangeCallbacks.close.push(e)}},{key:"onError",value:function(e){this.stateChangeCallbacks.error.push(e)}},{key:"onMessage",value:function(e){this.stateChangeCallbacks.message.push(e)}},{key:"onConnOpen",value:function(){this.hasLogger()&&this.log("transport","connected to ".concat(this.endPointURL())),this.flushSendBuffer(),this.reconnectTimer.reset(),this.resetHeartbeat(),this.resetChannelTimers(),this.stateChangeCallbacks.open.forEach(function(e){return e()})}},{key:"resetHeartbeat",value:function(){var e=this;this.conn.skipHeartbeat||(this.pendingHeartbeatRef=null,clearInterval(this.heartbeatTimer),this.heartbeatTimer=setInterval(function(){return e.sendHeartbeat()},this.heartbeatIntervalMs))}},{key:"teardown",value:function(e,t,n){this.conn&&(this.conn.onclose=function(){},t?this.conn.close(t,n||""):this.conn.close(),this.conn=null),e&&e()}},{key:"onConnClose",value:function(e){this.hasLogger()&&this.log("transport","close",e),this.triggerChanError(),clearInterval(this.heartbeatTimer),e&&1e3!==e.code&&this.reconnectTimer.scheduleTimeout(),this.stateChangeCallbacks.close.forEach(function(t){return t(e)})}},{key:"onConnError",value:function(e){this.hasLogger()&&this.log("transport",e),this.triggerChanError(),this.stateChangeCallbacks.error.forEach(function(t){return t(e)})}},{key:"triggerChanError",value:function(){this.channels.forEach(function(e){return e.trigger(v.error)})}},{key:"connectionState",value:function(){switch(this.conn&&this.conn.readyState){case f.connecting:return"connecting";case f.open:return"open";case f.closing:return"closing";default:return"closed"}}},{key:"isConnected",value:function(){return"open"===this.connectionState()}},{key:"remove",value:function(e){this.channels=this.channels.filter(function(t){return t.joinRef()!==e.joinRef()})}},{key:"channel",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},n=new b(e,t,this);return this.channels.push(n),n}},{key:"push",value:function(e){var t=this;if(this.hasLogger()){var n=e.topic,i=e.event,o=e.payload,r=e.ref,s=e.join_ref;this.log("push","".concat(n," ").concat(i," (").concat(s,", ").concat(r,")"),o)}this.isConnected()?this.encode(e,function(e){return t.conn.send(e)}):this.sendBuffer.push(function(){return t.encode(e,function(e){return t.conn.send(e)})})}},{key:"makeRef",value:function(){var e=this.ref+1;return e===this.ref?this.ref=0:this.ref=e,this.ref.toString()}},{key:"sendHeartbeat",value:function(){if(this.isConnected()){if(this.pendingHeartbeatRef)return this.pendingHeartbeatRef=null,this.hasLogger()&&this.log("transport","heartbeat timeout. Attempting to re-establish connection"),void this.conn.close(1e3,"hearbeat timeout");this.pendingHeartbeatRef=this.makeRef(),this.push({topic:"phoenix",event:"heartbeat",payload:{},ref:this.pendingHeartbeatRef})}}},{key:"flushSendBuffer",value:function(){this.isConnected()&&this.sendBuffer.length>0&&(this.sendBuffer.forEach(function(e){return e()}),this.sendBuffer=[])}},{key:"onConnMessage",value:function(e){var t=this;this.decode(e.data,function(e){var n=e.topic,i=e.event,o=e.payload,r=e.ref,s=e.join_ref;r&&r===t.pendingHeartbeatRef&&(t.pendingHeartbeatRef=null),t.hasLogger()&&t.log("receive","".concat(o.status||""," ").concat(n," ").concat(i," ").concat(r&&"("+r+")"||""),o);for(var a=0;a<t.channels.length;a++){var c=t.channels[a];c.isMember(n,i,o,s)&&c.trigger(i,o,r,s)}for(var u=0;u<t.stateChangeCallbacks.message.length;u++)t.stateChangeCallbacks.message[u](e)})}},{key:"resetChannelTimers",value:function(){this.channels.forEach(function(e){e.rejoinTimer.restart()})}}]),e}(),T=function(){function e(t){s(this,e),this.endPoint=null,this.token=null,this.skipHeartbeat=!0,this.onopen=function(){},this.onerror=function(){},this.onmessage=function(){},this.onclose=function(){},this.pollEndpoint=this.normalizeEndpoint(t),this.readyState=f.connecting,this.poll()}return c(e,[{key:"normalizeEndpoint",value:function(e){return e.replace("ws://","http://").replace("wss://","https://").replace(new RegExp("(.*)/"+m.websocket),"$1/"+m.longpoll)}},{key:"endpointURL",value:function(){return C.appendParams(this.pollEndpoint,{token:this.token})}},{key:"closeAndRetry",value:function(){this.close(),this.readyState=f.connecting}},{key:"ontimeout",value:function(){this.onerror("timeout"),this.closeAndRetry()}},{key:"poll",value:function(){var e=this;this.readyState!==f.open&&this.readyState!==f.connecting||C.request("GET",this.endpointURL(),"application/json",null,this.timeout,this.ontimeout.bind(this),function(t){if(t){var n=t.status,i=t.token,o=t.messages;e.token=i}else n=0;switch(n){case 200:o.forEach(function(t){return e.onmessage({data:t})}),e.poll();break;case 204:e.poll();break;case 410:e.readyState=f.open,e.onopen(),e.poll();break;case 0:case 500:e.onerror(),e.closeAndRetry();break;default:throw"unhandled poll status ".concat(n)}})}},{key:"send",value:function(e){var t=this;C.request("POST",this.endpointURL(),"application/json",e,this.timeout,this.onerror.bind(this,"timeout"),function(e){e&&200===e.status||(t.onerror(e&&e.status),t.closeAndRetry())})}},{key:"close",value:function(e,t){this.readyState=f.closed,this.onclose()}}]),e}(),C=function(){function e(){s(this,e)}return c(e,null,[{key:"request",value:function(e,t,n,i,o,r,s){if(l.XDomainRequest){var a=new XDomainRequest;this.xdomainRequest(a,e,t,i,o,r,s)}else{var c=l.XMLHttpRequest?new l.XMLHttpRequest:new ActiveXObject("Microsoft.XMLHTTP");this.xhrRequest(c,e,t,n,i,o,r,s)}}},{key:"xdomainRequest",value:function(e,t,n,i,o,r,s){var a=this;e.timeout=o,e.open(t,n),e.onload=function(){var t=a.parseJSON(e.responseText);s&&s(t)},r&&(e.ontimeout=r),e.onprogress=function(){},e.send(i)}},{key:"xhrRequest",value:function(e,t,n,i,o,r,s,a){var c=this;e.open(t,n,!0),e.timeout=r,e.setRequestHeader("Content-Type",i),e.onerror=function(){a&&a(null)},e.onreadystatechange=function(){if(e.readyState===c.states.complete&&a){var t=c.parseJSON(e.responseText);a(t)}},s&&(e.ontimeout=s),e.send(o)}},{key:"parseJSON",value:function(e){if(!e||""===e)return null;try{return JSON.parse(e)}catch(t){return console&&console.log("failed to parse JSON response",e),null}}},{key:"serialize",value:function(e,t){var n=[];for(var i in e)if(e.hasOwnProperty(i)){var r=t?"".concat(t,"[").concat(i,"]"):i,s=e[i];"object"===o(s)?n.push(this.serialize(s,r)):n.push(encodeURIComponent(r)+"="+encodeURIComponent(s))}return n.join("&")}},{key:"appendParams",value:function(e,t){if(0===Object.keys(t).length)return e;var n=e.match(/\?/)?"&":"?";return"".concat(e).concat(n).concat(this.serialize(t))}}]),e}();C.states={complete:4};var S=function(){function e(t){var n=this,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};s(this,e);var o=i.events||{state:"presence_state",diff:"presence_diff"};this.state={},this.pendingDiffs=[],this.channel=t,this.joinRef=null,this.caller={onJoin:function(){},onLeave:function(){},onSync:function(){}},this.channel.on(o.state,function(t){var i=n.caller,o=i.onJoin,r=i.onLeave,s=i.onSync;n.joinRef=n.channel.joinRef(),n.state=e.syncState(n.state,t,o,r),n.pendingDiffs.forEach(function(t){n.state=e.syncDiff(n.state,t,o,r)}),n.pendingDiffs=[],s()}),this.channel.on(o.diff,function(t){var i=n.caller,o=i.onJoin,r=i.onLeave,s=i.onSync;n.inPendingSyncState()?n.pendingDiffs.push(t):(n.state=e.syncDiff(n.state,t,o,r),s())})}return c(e,[{key:"onJoin",value:function(e){this.caller.onJoin=e}},{key:"onLeave",value:function(e){this.caller.onLeave=e}},{key:"onSync",value:function(e){this.caller.onSync=e}},{key:"list",value:function(t){return e.list(this.state,t)}},{key:"inPendingSyncState",value:function(){return!this.joinRef||this.joinRef!==this.channel.joinRef()}}],[{key:"syncState",value:function(e,t,n,i){var o=this,r=this.clone(e),s={},a={};return this.map(r,function(e,n){t[e]||(a[e]=n)}),this.map(t,function(e,t){var n=r[e];if(n){var i=t.metas.map(function(e){return e.phx_ref}),c=n.metas.map(function(e){return e.phx_ref}),u=t.metas.filter(function(e){return c.indexOf(e.phx_ref)<0}),h=n.metas.filter(function(e){return i.indexOf(e.phx_ref)<0});u.length>0&&(s[e]=t,s[e].metas=u),h.length>0&&(a[e]=o.clone(n),a[e].metas=h)}else s[e]=t}),this.syncDiff(r,{joins:s,leaves:a},n,i)}},{key:"syncDiff",value:function(e,t,n,o){var r=t.joins,s=t.leaves,a=this.clone(e);return n||(n=function(){}),o||(o=function(){}),this.map(r,function(e,t){var o=a[e];if(a[e]=t,o){var r,s=a[e].metas.map(function(e){return e.phx_ref}),c=o.metas.filter(function(e){return s.indexOf(e.phx_ref)<0});(r=a[e].metas).unshift.apply(r,i(c))}n(e,o,t)}),this.map(s,function(e,t){var n=a[e];if(n){var i=t.metas.map(function(e){return e.phx_ref});n.metas=n.metas.filter(function(e){return i.indexOf(e.phx_ref)<0}),o(e,n,t),0===n.metas.length&&delete a[e]}}),a}},{key:"list",value:function(e,t){return t||(t=function(e,t){return t}),this.map(e,function(e,n){return t(e,n)})}},{key:"map",value:function(e,t){return Object.getOwnPropertyNames(e).map(function(n){return t(n,e[n])})}},{key:"clone",value:function(e){return JSON.parse(JSON.stringify(e))}}]),e}(),w=function(){function e(t,n){s(this,e),this.callback=t,this.timerCalc=n,this.timer=null,this.tries=0}return c(e,[{key:"reset",value:function(){this.tries=0,this.clearTimer()}},{key:"restart",value:function(){var e=null!==this.timer;this.reset(),e&&this.scheduleTimeout()}},{key:"scheduleTimeout",value:function(){var e=this;this.clearTimer(),this.timer=setTimeout(function(){e.tries=e.tries+1,e.callback()},this.timerCalc(this.tries+1))}},{key:"clearTimer",value:function(){clearTimeout(this.timer),this.timer=null}}]),e}()}])});
\ No newline at end of file
+!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.Phoenix=t():e.Phoenix=t()}(this,function(){return function(e){var t={};function n(i){if(t[i])return t[i].exports;var o=t[i]={i:i,l:!1,exports:{}};return e[i].call(o.exports,o,o.exports,n),o.l=!0,o.exports}return n.m=e,n.c=t,n.d=function(e,t,i){n.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:i})},n.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},n.t=function(e,t){if(1&t&&(e=n(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var i=Object.create(null);if(n.r(i),Object.defineProperty(i,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var o in e)n.d(i,o,function(t){return e[t]}.bind(null,o));return i},n.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return n.d(t,"a",t),t},n.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},n.p="",n(n.s=0)}([function(e,t,n){(function(t){e.exports=t.Phoenix=n(2)}).call(this,n(1))},function(e,t){var n;n=function(){return this}();try{n=n||Function("return this")()||(0,eval)("this")}catch(e){"object"==typeof window&&(n=window)}e.exports=n},function(e,t,n){"use strict";function i(e){return function(e){if(Array.isArray(e)){for(var t=0,n=new Array(e.length);t<e.length;t++)n[t]=e[t];return n}}(e)||function(e){if(Symbol.iterator in Object(e)||"[object Arguments]"===Object.prototype.toString.call(e))return Array.from(e)}(e)||function(){throw new TypeError("Invalid attempt to spread non-iterable instance")}()}function o(e){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function r(e,t){return function(e){if(Array.isArray(e))return e}(e)||function(e,t){var n=[],i=!0,o=!1,r=void 0;try{for(var s,a=e[Symbol.iterator]();!(i=(s=a.next()).done)&&(n.push(s.value),!t||n.length!==t);i=!0);}catch(e){o=!0,r=e}finally{try{i||null==a.return||a.return()}finally{if(o)throw r}}return n}(e,t)||function(){throw new TypeError("Invalid attempt to destructure non-iterable instance")}()}function s(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function a(e,t){for(var n=0;n<t.length;n++){var i=t[n];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(e,i.key,i)}}function c(e,t,n){return t&&a(e.prototype,t),n&&a(e,n),e}n.r(t),n.d(t,"Channel",function(){return b}),n.d(t,"Socket",function(){return R}),n.d(t,"LongPoll",function(){return w}),n.d(t,"Ajax",function(){return C}),n.d(t,"Presence",function(){return S});var u="undefined"!=typeof self?self:null,h="undefined"!=typeof window?window:null,l=u||h||void 0,f={connecting:0,open:1,closing:2,closed:3},p=1e4,d={closed:"closed",errored:"errored",joined:"joined",joining:"joining",leaving:"leaving"},v={close:"phx_close",error:"phx_error",join:"phx_join",reply:"phx_reply",leave:"phx_leave"},y=[v.close,v.error,v.join,v.reply,v.leave],g={longpoll:"longpoll",websocket:"websocket"},m=function(e){if("function"==typeof e)return e;return function(){return e}},k=function(){function e(t,n,i,o){s(this,e),this.channel=t,this.event=n,this.payload=i||function(){return{}},this.receivedResp=null,this.timeout=o,this.timeoutTimer=null,this.recHooks=[],this.sent=!1}return c(e,[{key:"resend",value:function(e){this.timeout=e,this.reset(),this.send()}},{key:"send",value:function(){this.hasReceived("timeout")||(this.startTimeout(),this.sent=!0,this.channel.socket.push({topic:this.channel.topic,event:this.event,payload:this.payload(),ref:this.ref,join_ref:this.channel.joinRef()}))}},{key:"receive",value:function(e,t){return this.hasReceived(e)&&t(this.receivedResp.response),this.recHooks.push({status:e,callback:t}),this}},{key:"reset",value:function(){this.cancelRefEvent(),this.ref=null,this.refEvent=null,this.receivedResp=null,this.sent=!1}},{key:"matchReceive",value:function(e){var t=e.status,n=e.response;e.ref;this.recHooks.filter(function(e){return e.status===t}).forEach(function(e){return e.callback(n)})}},{key:"cancelRefEvent",value:function(){this.refEvent&&this.channel.off(this.refEvent)}},{key:"cancelTimeout",value:function(){clearTimeout(this.timeoutTimer),this.timeoutTimer=null}},{key:"startTimeout",value:function(){var e=this;this.timeoutTimer&&this.cancelTimeout(),this.ref=this.channel.socket.makeRef(),this.refEvent=this.channel.replyEventName(this.ref),this.channel.on(this.refEvent,function(t){e.cancelRefEvent(),e.cancelTimeout(),e.receivedResp=t,e.matchReceive(t)}),this.timeoutTimer=setTimeout(function(){e.trigger("timeout",{})},this.timeout)}},{key:"hasReceived",value:function(e){return this.receivedResp&&this.receivedResp.status===e}},{key:"trigger",value:function(e,t){this.channel.trigger(this.refEvent,{status:e,response:t})}}]),e}(),b=function(){function e(t,n,i){var o=this;s(this,e),this.state=d.closed,this.topic=t,this.params=m(n||{}),this.socket=i,this.bindings=[],this.bindingRef=0,this.timeout=this.socket.timeout,this.joinedOnce=!1,this.joinPush=new k(this,v.join,this.params,this.timeout),this.pushBuffer=[],this.rejoinTimer=new T(function(){return o.rejoinUntilConnected()},this.socket.reconnectAfterMs),this.joinPush.receive("ok",function(){o.state=d.joined,o.rejoinTimer.reset(),o.pushBuffer.forEach(function(e){return e.send()}),o.pushBuffer=[]}),this.onClose(function(){o.rejoinTimer.reset(),o.socket.hasLogger()&&o.socket.log("channel","close ".concat(o.topic," ").concat(o.joinRef())),o.state=d.closed,o.socket.remove(o)}),this.onError(function(e){o.isLeaving()||o.isClosed()||(o.socket.hasLogger()&&o.socket.log("channel","error ".concat(o.topic),e),o.state=d.errored,o.rejoinTimer.scheduleTimeout())}),this.joinPush.receive("timeout",function(){o.isJoining()&&(o.socket.hasLogger()&&o.socket.log("channel","timeout ".concat(o.topic," (").concat(o.joinRef(),")"),o.joinPush.timeout),new k(o,v.leave,m({}),o.timeout).send(),o.state=d.errored,o.joinPush.reset(),o.rejoinTimer.scheduleTimeout())}),this.on(v.reply,function(e,t){o.trigger(o.replyEventName(t),e)})}return c(e,[{key:"rejoinUntilConnected",value:function(){this.rejoinTimer.scheduleTimeout(),this.socket.isConnected()&&this.rejoin()}},{key:"join",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.timeout;if(this.joinedOnce)throw new Error("tried to join multiple times. 'join' can only be called a single time per channel instance");return this.joinedOnce=!0,this.rejoin(e),this.joinPush}},{key:"onClose",value:function(e){this.on(v.close,e)}},{key:"onError",value:function(e){return this.on(v.error,function(t){return e(t)})}},{key:"on",value:function(e,t){var n=this.bindingRef++;return this.bindings.push({event:e,ref:n,callback:t}),n}},{key:"off",value:function(e,t){this.bindings=this.bindings.filter(function(n){return!(n.event===e&&(void 0===t||t===n.ref))})}},{key:"canPush",value:function(){return this.socket.isConnected()&&this.isJoined()}},{key:"push",value:function(e,t){var n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:this.timeout;if(!this.joinedOnce)throw new Error("tried to push '".concat(e,"' to '").concat(this.topic,"' before joining. Use channel.join() before pushing events"));var i=new k(this,e,function(){return t},n);return this.canPush()?i.send():(i.startTimeout(),this.pushBuffer.push(i)),i}},{key:"leave",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.timeout;this.state=d.leaving;var n=function(){e.socket.hasLogger()&&e.socket.log("channel","leave ".concat(e.topic)),e.trigger(v.close,"leave")},i=new k(this,v.leave,m({}),t);return i.receive("ok",function(){return n()}).receive("timeout",function(){return n()}),i.send(),this.canPush()||i.trigger("ok",{}),i}},{key:"onMessage",value:function(e,t,n){return t}},{key:"isLifecycleEvent",value:function(e){return y.indexOf(e)>=0}},{key:"isMember",value:function(e,t,n,i){return this.topic===e&&(!i||i===this.joinRef()||!this.isLifecycleEvent(t)||(this.socket.hasLogger()&&this.socket.log("channel","dropping outdated message",{topic:e,event:t,payload:n,joinRef:i}),!1))}},{key:"joinRef",value:function(){return this.joinPush.ref}},{key:"sendJoin",value:function(e){this.state=d.joining,this.joinPush.resend(e)}},{key:"rejoin",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.timeout;this.isLeaving()||this.sendJoin(e)}},{key:"trigger",value:function(e,t,n,i){var o=this.onMessage(e,t,n,i);if(t&&!o)throw new Error("channel onMessage callbacks must return the payload, modified or unmodified");for(var r=0;r<this.bindings.length;r++){var s=this.bindings[r];s.event===e&&s.callback(o,n,i||this.joinRef())}}},{key:"replyEventName",value:function(e){return"chan_reply_".concat(e)}},{key:"isClosed",value:function(){return this.state===d.closed}},{key:"isErrored",value:function(){return this.state===d.errored}},{key:"isJoined",value:function(){return this.state===d.joined}},{key:"isJoining",value:function(){return this.state===d.joining}},{key:"isLeaving",value:function(){return this.state===d.leaving}}]),e}(),j={encode:function(e,t){var n=[e.join_ref,e.ref,e.topic,e.event,e.payload];return t(JSON.stringify(n))},decode:function(e,t){var n=r(JSON.parse(e),5);return t({join_ref:n[0],ref:n[1],topic:n[2],event:n[3],payload:n[4]})}},R=function(){function e(t){var n=this,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};s(this,e),this.stateChangeCallbacks={open:[],close:[],error:[],message:[]},this.channels=[],this.sendBuffer=[],this.ref=0,this.timeout=i.timeout||p,this.transport=i.transport||l.WebSocket||w,this.defaultEncoder=j.encode,this.defaultDecoder=j.decode,this.transport!==w?(this.encode=i.encode||this.defaultEncoder,this.decode=i.decode||this.defaultDecoder):(this.encode=this.defaultEncoder,this.decode=this.defaultDecoder),this.heartbeatIntervalMs=i.heartbeatIntervalMs||3e4,this.reconnectAfterMs=i.reconnectAfterMs||function(e){return[1e3,2e3,5e3,1e4][e-1]||1e4},this.logger=i.logger||null,this.longpollerTimeout=i.longpollerTimeout||2e4,this.params=m(i.params||{}),this.endPoint="".concat(t,"/").concat(g.websocket),this.heartbeatTimer=null,this.pendingHeartbeatRef=null,this.reconnectTimer=new T(function(){n.teardown(function(){return n.connect()})},this.reconnectAfterMs)}return c(e,[{key:"protocol",value:function(){return location.protocol.match(/^https/)?"wss":"ws"}},{key:"endPointURL",value:function(){var e=C.appendParams(C.appendParams(this.endPoint,this.params()),{vsn:"2.0.0"});return"/"!==e.charAt(0)?e:"/"===e.charAt(1)?"".concat(this.protocol(),":").concat(e):"".concat(this.protocol(),"://").concat(location.host).concat(e)}},{key:"disconnect",value:function(e,t,n){this.reconnectTimer.reset(),this.teardown(e,t,n)}},{key:"connect",value:function(e){var t=this;e&&(console&&console.log("passing params to connect is deprecated. Instead pass :params to the Socket constructor"),this.params=m(e)),this.conn||(this.conn=new this.transport(this.endPointURL()),this.conn.timeout=this.longpollerTimeout,this.conn.onopen=function(){return t.onConnOpen()},this.conn.onerror=function(e){return t.onConnError(e)},this.conn.onmessage=function(e){return t.onConnMessage(e)},this.conn.onclose=function(e){return t.onConnClose(e)})}},{key:"log",value:function(e,t,n){this.logger(e,t,n)}},{key:"hasLogger",value:function(){return null!==this.logger}},{key:"onOpen",value:function(e){this.stateChangeCallbacks.open.push(e)}},{key:"onClose",value:function(e){this.stateChangeCallbacks.close.push(e)}},{key:"onError",value:function(e){this.stateChangeCallbacks.error.push(e)}},{key:"onMessage",value:function(e){this.stateChangeCallbacks.message.push(e)}},{key:"onConnOpen",value:function(){this.hasLogger()&&this.log("transport","connected to ".concat(this.endPointURL())),this.flushSendBuffer(),this.reconnectTimer.reset(),this.resetHeartbeat(),this.stateChangeCallbacks.open.forEach(function(e){return e()})}},{key:"resetHeartbeat",value:function(){var e=this;this.conn.skipHeartbeat||(this.pendingHeartbeatRef=null,clearInterval(this.heartbeatTimer),this.heartbeatTimer=setInterval(function(){return e.sendHeartbeat()},this.heartbeatIntervalMs))}},{key:"teardown",value:function(e,t,n){this.conn&&(this.conn.onclose=function(){},t?this.conn.close(t,n||""):this.conn.close(),this.conn=null),e&&e()}},{key:"onConnClose",value:function(e){this.hasLogger()&&this.log("transport","close",e),this.triggerChanError(),clearInterval(this.heartbeatTimer),e&&1e3!==e.code&&this.reconnectTimer.scheduleTimeout(),this.stateChangeCallbacks.close.forEach(function(t){return t(e)})}},{key:"onConnError",value:function(e){this.hasLogger()&&this.log("transport",e),this.triggerChanError(),this.stateChangeCallbacks.error.forEach(function(t){return t(e)})}},{key:"triggerChanError",value:function(){this.channels.forEach(function(e){return e.trigger(v.error)})}},{key:"connectionState",value:function(){switch(this.conn&&this.conn.readyState){case f.connecting:return"connecting";case f.open:return"open";case f.closing:return"closing";default:return"closed"}}},{key:"isConnected",value:function(){return"open"===this.connectionState()}},{key:"remove",value:function(e){this.channels=this.channels.filter(function(t){return t.joinRef()!==e.joinRef()})}},{key:"channel",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},n=new b(e,t,this);return this.channels.push(n),n}},{key:"push",value:function(e){var t=this;if(this.hasLogger()){var n=e.topic,i=e.event,o=e.payload,r=e.ref,s=e.join_ref;this.log("push","".concat(n," ").concat(i," (").concat(s,", ").concat(r,")"),o)}this.isConnected()?this.encode(e,function(e){return t.conn.send(e)}):this.sendBuffer.push(function(){return t.encode(e,function(e){return t.conn.send(e)})})}},{key:"makeRef",value:function(){var e=this.ref+1;return e===this.ref?this.ref=0:this.ref=e,this.ref.toString()}},{key:"sendHeartbeat",value:function(){if(this.isConnected()){if(this.pendingHeartbeatRef)return this.pendingHeartbeatRef=null,this.hasLogger()&&this.log("transport","heartbeat timeout. Attempting to re-establish connection"),void this.conn.close(1e3,"hearbeat timeout");this.pendingHeartbeatRef=this.makeRef(),this.push({topic:"phoenix",event:"heartbeat",payload:{},ref:this.pendingHeartbeatRef})}}},{key:"flushSendBuffer",value:function(){this.isConnected()&&this.sendBuffer.length>0&&(this.sendBuffer.forEach(function(e){return e()}),this.sendBuffer=[])}},{key:"onConnMessage",value:function(e){var t=this;this.decode(e.data,function(e){var n=e.topic,i=e.event,o=e.payload,r=e.ref,s=e.join_ref;r&&r===t.pendingHeartbeatRef&&(t.pendingHeartbeatRef=null),t.hasLogger()&&t.log("receive","".concat(o.status||""," ").concat(n," ").concat(i," ").concat(r&&"("+r+")"||""),o);for(var a=0;a<t.channels.length;a++){var c=t.channels[a];c.isMember(n,i,o,s)&&c.trigger(i,o,r,s)}for(var u=0;u<t.stateChangeCallbacks.message.length;u++)t.stateChangeCallbacks.message[u](e)})}}]),e}(),w=function(){function e(t){s(this,e),this.endPoint=null,this.token=null,this.skipHeartbeat=!0,this.onopen=function(){},this.onerror=function(){},this.onmessage=function(){},this.onclose=function(){},this.pollEndpoint=this.normalizeEndpoint(t),this.readyState=f.connecting,this.poll()}return c(e,[{key:"normalizeEndpoint",value:function(e){return e.replace("ws://","http://").replace("wss://","https://").replace(new RegExp("(.*)/"+g.websocket),"$1/"+g.longpoll)}},{key:"endpointURL",value:function(){return C.appendParams(this.pollEndpoint,{token:this.token})}},{key:"closeAndRetry",value:function(){this.close(),this.readyState=f.connecting}},{key:"ontimeout",value:function(){this.onerror("timeout"),this.closeAndRetry()}},{key:"poll",value:function(){var e=this;this.readyState!==f.open&&this.readyState!==f.connecting||C.request("GET",this.endpointURL(),"application/json",null,this.timeout,this.ontimeout.bind(this),function(t){if(t){var n=t.status,i=t.token,o=t.messages;e.token=i}else n=0;switch(n){case 200:o.forEach(function(t){return e.onmessage({data:t})}),e.poll();break;case 204:e.poll();break;case 410:e.readyState=f.open,e.onopen(),e.poll();break;case 0:case 500:e.onerror(),e.closeAndRetry();break;default:throw new Error("unhandled poll status ".concat(n))}})}},{key:"send",value:function(e){var t=this;C.request("POST",this.endpointURL(),"application/json",e,this.timeout,this.onerror.bind(this,"timeout"),function(e){e&&200===e.status||(t.onerror(e&&e.status),t.closeAndRetry())})}},{key:"close",value:function(e,t){this.readyState=f.closed,this.onclose()}}]),e}(),C=function(){function e(){s(this,e)}return c(e,null,[{key:"request",value:function(e,t,n,i,o,r,s){if(l.XDomainRequest){var a=new XDomainRequest;this.xdomainRequest(a,e,t,i,o,r,s)}else{var c=l.XMLHttpRequest?new l.XMLHttpRequest:new ActiveXObject("Microsoft.XMLHTTP");this.xhrRequest(c,e,t,n,i,o,r,s)}}},{key:"xdomainRequest",value:function(e,t,n,i,o,r,s){var a=this;e.timeout=o,e.open(t,n),e.onload=function(){var t=a.parseJSON(e.responseText);s&&s(t)},r&&(e.ontimeout=r),e.onprogress=function(){},e.send(i)}},{key:"xhrRequest",value:function(e,t,n,i,o,r,s,a){var c=this;e.open(t,n,!0),e.timeout=r,e.setRequestHeader("Content-Type",i),e.onerror=function(){a&&a(null)},e.onreadystatechange=function(){if(e.readyState===c.states.complete&&a){var t=c.parseJSON(e.responseText);a(t)}},s&&(e.ontimeout=s),e.send(o)}},{key:"parseJSON",value:function(e){if(!e||""===e)return null;try{return JSON.parse(e)}catch(t){return console&&console.log("failed to parse JSON response",e),null}}},{key:"serialize",value:function(e,t){var n=[];for(var i in e)if(e.hasOwnProperty(i)){var r=t?"".concat(t,"[").concat(i,"]"):i,s=e[i];"object"===o(s)?n.push(this.serialize(s,r)):n.push(encodeURIComponent(r)+"="+encodeURIComponent(s))}return n.join("&")}},{key:"appendParams",value:function(e,t){if(0===Object.keys(t).length)return e;var n=e.match(/\?/)?"&":"?";return"".concat(e).concat(n).concat(this.serialize(t))}}]),e}();C.states={complete:4};var S=function(){function e(t){var n=this,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};s(this,e);var o=i.events||{state:"presence_state",diff:"presence_diff"};this.state={},this.pendingDiffs=[],this.channel=t,this.joinRef=null,this.caller={onJoin:function(){},onLeave:function(){},onSync:function(){}},this.channel.on(o.state,function(t){var i=n.caller,o=i.onJoin,r=i.onLeave,s=i.onSync;n.joinRef=n.channel.joinRef(),n.state=e.syncState(n.state,t,o,r),n.pendingDiffs.forEach(function(t){n.state=e.syncDiff(n.state,t,o,r)}),n.pendingDiffs=[],s()}),this.channel.on(o.diff,function(t){var i=n.caller,o=i.onJoin,r=i.onLeave,s=i.onSync;n.inPendingSyncState()?n.pendingDiffs.push(t):(n.state=e.syncDiff(n.state,t,o,r),s())})}return c(e,[{key:"onJoin",value:function(e){this.caller.onJoin=e}},{key:"onLeave",value:function(e){this.caller.onLeave=e}},{key:"onSync",value:function(e){this.caller.onSync=e}},{key:"list",value:function(t){return e.list(this.state,t)}},{key:"inPendingSyncState",value:function(){return!this.joinRef||this.joinRef!==this.channel.joinRef()}}],[{key:"syncState",value:function(e,t,n,i){var o=this,r=this.clone(e),s={},a={};return this.map(r,function(e,n){t[e]||(a[e]=n)}),this.map(t,function(e,t){var n=r[e];if(n){var i=t.metas.map(function(e){return e.phx_ref}),c=n.metas.map(function(e){return e.phx_ref}),u=t.metas.filter(function(e){return c.indexOf(e.phx_ref)<0}),h=n.metas.filter(function(e){return i.indexOf(e.phx_ref)<0});u.length>0&&(s[e]=t,s[e].metas=u),h.length>0&&(a[e]=o.clone(n),a[e].metas=h)}else s[e]=t}),this.syncDiff(r,{joins:s,leaves:a},n,i)}},{key:"syncDiff",value:function(e,t,n,o){var r=t.joins,s=t.leaves,a=this.clone(e);return n||(n=function(){}),o||(o=function(){}),this.map(r,function(e,t){var o=a[e];if(a[e]=t,o){var r,s=a[e].metas.map(function(e){return e.phx_ref}),c=o.metas.filter(function(e){return s.indexOf(e.phx_ref)<0});(r=a[e].metas).unshift.apply(r,i(c))}n(e,o,t)}),this.map(s,function(e,t){var n=a[e];if(n){var i=t.metas.map(function(e){return e.phx_ref});n.metas=n.metas.filter(function(e){return i.indexOf(e.phx_ref)<0}),o(e,n,t),0===n.metas.length&&delete a[e]}}),a}},{key:"list",value:function(e,t){return t||(t=function(e,t){return t}),this.map(e,function(e,n){return t(e,n)})}},{key:"map",value:function(e,t){return Object.getOwnPropertyNames(e).map(function(n){return t(n,e[n])})}},{key:"clone",value:function(e){return JSON.parse(JSON.stringify(e))}}]),e}(),T=function(){function e(t,n){s(this,e),this.callback=t,this.timerCalc=n,this.timer=null,this.tries=0}return c(e,[{key:"reset",value:function(){this.tries=0,clearTimeout(this.timer)}},{key:"scheduleTimeout",value:function(){var e=this;clearTimeout(this.timer),this.timer=setTimeout(function(){e.tries=e.tries+1,e.callback()},this.timerCalc(this.tries+1))}}]),e}()}])});
\ No newline at end of file


Test patch:
diff --git a/assets/test/socket_test.js b/assets/test/socket_test.js
index fe38507b5..4790db775 100644
--- a/assets/test/socket_test.js
+++ b/assets/test/socket_test.js
@@ -605,25 +605,6 @@ describe("onConnOpen", () => {
     assert.ok(spy.calledOnce)
   })
 
-  it("resets all channel timers and schedules a timeout if the timer was in progress", () => {
-    const channel = socket.channel("topic", {})
-    const channel2 = socket.channel("topic2", {})
-
-    channel.rejoinTimer.tries = 1
-    channel2.rejoinTimer.tries = 2
-    channel2.rejoinTimer.scheduleTimeout()
-
-    assert.equal(channel.rejoinTimer.timer, null)
-    assert.notEqual(channel2.rejoinTimer.timer, null)
-
-    socket.onConnOpen()
-
-    assert.equal(channel.rejoinTimer.tries, 0)
-    assert.equal(channel2.rejoinTimer.tries, 0)
-    assert.equal(channel.rejoinTimer.timer, null)
-    assert.notEqual(channel2.rejoinTimer.timer, null)
-  })
-
   it("triggers onOpen callback", () => {
     const spy = sinon.spy()