Success! Looks like we've fixed this one. According to our records the fix was applied for EXTJS-8418 in a recent build.
  1. #1
    Ext JS Premium Member yuriy's Avatar
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    Default IE9 navigator.geolocation memory leak (standards mode)

    IE9 navigator.geolocation memory leak (standards mode)


    REQUIRED INFORMATION

    Ext version tested:
    • ExtJS 4.1.3
    Browser versions tested against:
    • IE9 (9.0.8112.16421, update versions: 9.0.12)
    DOCTYPE tested against:
    • html
    • no doctype with X-UA-Compatible "IE=edge" meta
    Description:
    • IE9 has a memory leak issue in GeoLocation API
    • This is triggered by ExtJS initialization, so simply including ExtJS in a page is enough for IE to start leaking memory
    Steps to reproduce the problem:
    • hit F5 multiple times
    • monitor iexplore.exe process memory consumption
    The result that was expected:
    • iexplore.exe process memory stays approximately the same with every refresh
    The result that occurs instead:
    • iexplore.exe memory consumption grows continuously
    Test Case:
    Code:
    <!DOCTYPE html>
    <html>
    <head>
      <script src="ext-all-debug.js"></script> 
    </head>
    <body>
    </body>
    </html>

    HELPFUL INFORMATION

    Useful links:
    Memory leak source:
    • Ext.supports.init tests -> 'GeoLocation':
    Code:
    {
      identity: 'GeoLocation',
      fn: function() {
      return (typeof navigator != 'undefined' && typeof navigator.geolocation != 'undefined') || (typeof google != 'undefined' && typeof google.gears != 'undefined');
      }
    },

    Possible fix:
    Code:
    {
      identity: 'GeoLocation',
      fn: function() {
      return (typeof navigator != 'undefined' && 'geolocation' in navigator) || (typeof google != 'undefined' && typeof google.gears != 'undefined');
      }
    },
    Additional CSS used:
    • none
    Operating System:
    • Windows 7 Pro x64
    TL;DR:
    This seems critical

  2. #2
    Sencha - Senior Forum Manager mitchellsimoens's Avatar
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    Default


    Thanks for the report! I have opened a bug in our bug tracker.

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