Removing an `or` condition from `XMLHttpRequest.prototype.getAllResponseHeaders()` shim for node.js which affected a Server to Server case
Fixing `client.response()` handling of status codes that should be handled by the Client (when acting as a Server), removed a close handler on `res`
Setting `Content-Type` of response in `xhr.handlerError()`
Merge pull request #413 from avoidwork/edge

Major fixes