driverdan/node-XMLHttpRequest — pull request #42 by mixu (2012-09-25 02:20:39+00:00)
Title: Remove max limit on connections per host

Disable agent on http requests to prevent connections from being subject to the default max limit on connections per host.

This has been documented since Node 0.6.0:

http://nodejs.org/docs/v0.6.0/api/http.html#http.request
http://nodejs.org/docs/v0.7.0/api/http.html#http.request
http://nodejs.org/docs/v0.8.0/api/http.html#http_http_request_options_callback
http://nodejs.org/docs/v0.9.0/api/http.html#http_http_request_options_callback

The interface is different in versions prior to 0.6.0 (but I'd assume that the option is ignored if set but unsupported):

http://nodejs.org/docs/v0.5.0/api/http.html#http.Agent