|  | <!DOCTYPE html> | 
|  | <html> | 
|  | <head> | 
|  | <link rel="help" href="https://xhr.spec.whatwg.org/#the-abort()-method" data-tested-assertations="following-sibling::ol/li[4]/ol/li[7]/ol/li[4]" /> | 
|  | <script src="/resources/testharness.js"></script> | 
|  | <script src="/resources/testharnessreport.js"></script> | 
|  | <title>XMLHttpRequest: The abort() method: Fire a progress event named loadend on the XMLHttpRequestUpload object</title> | 
|  | </head> | 
|  |  | 
|  | <body> | 
|  | <div id="log"></div> | 
|  |  | 
|  | <script type="text/javascript"> | 
|  | var test = async_test(); | 
|  |  | 
|  | test.step(function() | 
|  | { | 
|  | var xhr = new XMLHttpRequest(); | 
|  |  | 
|  | xhr.onloadstart = function() | 
|  | { | 
|  | test.step(function () | 
|  | { | 
|  | if (xhr.readyState == 1) | 
|  | { | 
|  | xhr.abort(); | 
|  | } | 
|  | }); | 
|  | }; | 
|  |  | 
|  | xhr.upload.onloadend = function(e) | 
|  | { | 
|  | test.step(function() | 
|  | { | 
|  | assert_true(e instanceof ProgressEvent); | 
|  | assert_equals(e.type, "loadend"); | 
|  | assert_equals(e.target, xhr.upload); | 
|  | test.done(); | 
|  | }); | 
|  | }; | 
|  |  | 
|  | xhr.open("POST", "./resources/content.py", true); | 
|  | xhr.send("Test Message"); | 
|  | }); | 
|  | </script> | 
|  | </body> | 
|  | </html> |