Make sure that Opera fires events after an aborted Ajax attempt. Fixes #5787.

[jquery.git] / src / ajax.js

diff --git a/src/ajax.js b/src/ajax.js
index 193a85a..07e706c 100644 (file)
--- a/src/ajax.js
+++ b/src/ajax.js
@@ -393,7 +393,9 @@ jQuery.extend({
                        // The request was aborted, clear the interval and decrement jQuery.active
                        if ( !xhr || xhr.readyState === 0 ) {
                                requestDone = true;
-                               xhr.onreadystatechange = jQuery.noop;
+                               if ( xhr ) {
+                                       xhr.onreadystatechange = jQuery.noop;
+                               }
 
                                // Handle the global AJAX counter
                                if ( s.global && ! --jQuery.active ) {
@@ -447,6 +449,22 @@ jQuery.extend({
                        }
                };
 
+               // Override the abort handler, if we can (IE doesn't allow it, but that's OK)
+               // Opera doesn't fire onreadystatechange at all on abort
+               try {
+                       var oldAbort = xhr.abort;
+                       xhr.abort = function() {
+                               oldAbort.call( xhr );
+                               if ( xhr ) {
+                                       xhr.readyState = 0;
+                               }
+                               if ( !requestDone ) {
+                                       complete();
+                               }
+                               onreadystatechange();
+                       };
+               } catch(e) { }
+
                // Timeout checker
                if ( s.async && s.timeout > 0 ) {
                        setTimeout(function() {