Fix #249 use proper base url for iframe-based info receiver

Author: brycekahle

lib/info-iframe.js

@@ -13,12 +13,12 @@ if (process.env.NODE_ENV !== 'production') {
   debug = require('debug')('sockjs-client:info-iframe');
 }
 
-function InfoIframe(url) {
+function InfoIframe(baseUrl, url) {
   var self = this;
   EventEmitter.call(this);
 
   var go = function() {
-    var ifr = self.ifr = new IframeTransport(InfoReceiverIframe.transportName, url, url);
+    var ifr = self.ifr = new IframeTransport(InfoReceiverIframe.transportName, url, baseUrl);
 
     ifr.once('message', function(msg) {
       if (msg) {

lib/info-receiver.js

@@ -30,7 +30,7 @@ inherits(InfoReceiver, EventEmitter);
 
 // TODO this is currently ignoring the list of available transports and the whitelist
 
-InfoReceiver._getReceiver = function(url, urlInfo) {
+InfoReceiver._getReceiver = function(baseUrl, url, urlInfo) {
   // determine method of CORS support (if needed)
   if (urlInfo.sameOrigin) {
     return new InfoAjax(url, XHRLocal);
@@ -42,7 +42,7 @@ InfoReceiver._getReceiver = function(url, urlInfo) {
     return new InfoAjax(url, XDR);
   }
   if (InfoIframe.enabled()) {
-    return new InfoIframe(url);
+    return new InfoIframe(baseUrl, url);
   }
   return new InfoAjax(url, XHRFake);
 };
@@ -53,7 +53,7 @@ InfoReceiver.prototype.doXhr = function(baseUrl, urlInfo) {
     ;
   debug('doXhr', url);
 
-  this.xo = InfoReceiver._getReceiver(url, urlInfo);
+  this.xo = InfoReceiver._getReceiver(baseUrl, url, urlInfo);
 
   this.timeoutRef = setTimeout(function() {
     debug('timeout');