Merge pull request #132 from asdfryan/master

Issue 83 fix: IE9/10 error
socketio · Mar 5, 2013 · deaa672 · deaa672
2 parents 5cdcb47 + 0435d1c
commit deaa672
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/lib/transports/polling-xhr.js b/lib/transports/polling-xhr.js
@@ -248,6 +248,9 @@ Request.prototype.onError = function(err){
  */
 
 Request.prototype.cleanup = function(){
+  if ('undefined' == typeof this.xhr ) {
+    return;
+  }
   // xmlhttprequest
   this.xhr.onreadystatechange = empty;