First commit

hGameTest/node_modules/sockjs-client/lib/transport/xhr-streaming.js

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+'use strict';
+
+var inherits = require('inherits')
+  , AjaxBasedTransport = require('./lib/ajax-based')
+  , XhrReceiver = require('./receiver/xhr')
+  , XHRCorsObject = require('./sender/xhr-cors')
+  , XHRLocalObject = require('./sender/xhr-local')
+  , browser = require('../utils/browser')
+  ;
+
+function XhrStreamingTransport(transUrl) {
+  if (!XHRLocalObject.enabled && !XHRCorsObject.enabled) {
+    throw new Error('Transport created when disabled');
+  }
+  AjaxBasedTransport.call(this, transUrl, '/xhr_streaming', XhrReceiver, XHRCorsObject);
+}
+
+inherits(XhrStreamingTransport, AjaxBasedTransport);
+
+XhrStreamingTransport.enabled = function(info) {
+  if (info.nullOrigin) {
+    return false;
+  }
+  // Opera doesn't support xhr-streaming #60
+  // But it might be able to #92
+  if (browser.isOpera()) {
+    return false;
+  }
+
+  return XHRCorsObject.enabled;
+};
+
+XhrStreamingTransport.transportName = 'xhr-streaming';
+XhrStreamingTransport.roundTrips = 2; // preflight, ajax
+
+// Safari gets confused when a streaming ajax request is started
+// before onload. This causes the load indicator to spin indefinetely.
+// Only require body when used in a browser
+XhrStreamingTransport.needBody = !!global.document;
+
+module.exports = XhrStreamingTransport;