Created
April 19, 2012 07:48
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jQuery jsonp auto-generated callbacks memory leak.
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| <?php | |
| // Only run this locally, unless you want to bombard your server with hundreds of requests a second. | |
| if($_GET['a']) die( $_GET['callback'] . '(false);'); | |
| ?> | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>JSONP Memory leak test</title> | |
| <script type='text/javascript' src='http://code.jquery.com/jquery-git.js'></script> | |
| </head> | |
| <body> | |
| <div id="a"></div> | |
| <button onclick="start();">Start</button> | |
| <button onclick="stop();">Stop</button> | |
| <script type="text/javascript"> | |
| var i = 0, interval, pingTo = window.location + '?a=1&callback=?'; | |
| function cb(){ | |
| document.getElementById('a').innerHTML = i++; | |
| } | |
| function ping(){ | |
| var j = 10; | |
| while(j--) | |
| $.ajax(pingTo, { | |
| crossDomain: true, | |
| dataType: 'jsonp', | |
| success: cb | |
| }); | |
| } | |
| function start(){ | |
| interval = setInterval(ping, 10); | |
| } | |
| function stop(){ | |
| clearInterval(interval); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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