REQUIRED INFORMATION

Ext version tested:
  • ExtJS 4.1.1a Sandboxed with ExtJS 3.4.0
Browser versions tested against:
  • IE9
DOCTYPE tested against:
  • HTML 5
Description:
  • Including ExtJS 4.x sandbox, ExtJS 3.4.0 base and ExtJS 3.4.0 all scripts in a blank HTML 5 document and refreshing page leaks ~20MB each refresh.
Steps to reproduce the problem:
  • Page Refresh
The result that was expected:
  • IE9 Memory Usage stays about the same after each refresh
The result that occurs instead:
  • IE9 Memory Usage increases by ~20MB after each refresh
Test Case:
Code:
<!DOCTYPE HTML>
<html>
<head>
    <script src="ext340-base-debug.js"></script>
    <script src="ext340-all-debug.js"></script>
    <script src="ext411-all-sandbox-debug.js"></script>    
</head>
<body>&nbsp;</body>
</html>
HELPFUL INFORMATION

Debugging already done:
  • Remove the doctype - no leak
  • Remove ExtJS 4.x sandbox - no leak
  • Remove ExtJS 3.x base and all - no leak
  • Comment out fireDocReady in ExtJS 4.x sandbox - no leak
Additional CSS used:
  • No CSS
Operating System:
  • Windows 7