延迟socket.io响应，并且“警告 – websocket连接无效”

我正在AWS EC2实例上运行nodeJS + Express + socket.io + httpd应用程序。

在加载页面时，logging器提供以下信息：

GET / 200 2ms - 1.23kb GET /javascripts/script.js 304 1ms debug - served static content /socket.io.js GET /stylesheets/style.css 304 1ms GET /stylesheets/style.css 304 1ms GET /images/052.png 304 1ms GET /Candara.ttf 304 1ms debug - client authorized info - handshake authorized EgWLPeyO2uiCTSui01CP debug - setting request GET /socket.io/1/websocket/EgWLPeyO2uiCTSui01CP debug - set heartbeat interval for client EgWLPeyO2uiCTSui01CP warn - websocket connection invalid info - transport end (undefined) debug - set close timeout for client EgWLPeyO2uiCTSui01CP debug - cleared close timeout for client EgWLPeyO2uiCTSui01CP debug - cleared heartbeat interval for client EgWLPeyO2uiCTSui01CP

此时，事情将停止约5秒钟，之后：

  debug - setting request GET /socket.io/1/xhr-polling/EgWLPeyO2uiCTSui01CP?t=1376937523124 debug - setting poll timeout debug - client authorized for debug - clearing poll timeout debug - xhr-polling writing 1:: debug - set close timeout for client EgWLPeyO2uiCTSui01CP debug - setting request GET /socket.io/1/xhr-polling/EgWLPeyO2uiCTSui01CP?t=1376937523490 debug - setting poll timeout debug - discarding transport debug - cleared close timeout for client EgWLPeyO2uiCTSui01CP

在这之后，就我所知，事情开始运转良好，并且事件被触发并且没有延迟地被接收（如果事件在上述5秒延迟之前被触发，那么在延迟完成之后它们将不被处理）。问题是如何删除5秒的延迟。

客户端JS看起来像这样：

 window.onload = function () { var socket = io.connect("http://xxx.us-west-2.compute.amazonaws.com", {resource: "/socket.io"});

服务器端JS如下所示：

 var express = require('express'); var app = express(); var io = require("socket.io").listen(app.listen(3000));

我的httpd.conf文件如下所示：

 ProxyPreserveHost On ProxyPass / http://localhost:3000/ ProxyPassReverse / http://localhost:3000/ <Proxy *> Order deny,allow Allow from all </Proxy> <Location /> allow from all </Location>

我怎样才能避免最初的延迟，并build立一个健康的连接到socket.io？

我通过将允许的传输方法限制为“xhr-polling”和“jsonp-polling”来解决这个问题。我相信这是因为Apache / 2.2.25不支持其他。