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Thread: Internet Explorer - Memory Leakage issue

    Success! Looks like we've fixed this one. According to our records the fix was applied for EXTJS-15785 in 6.0.0ga.
  1. #1
    Sencha User
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    Default Internet Explorer - Memory Leakage issue

    I am using ExtJS 4.2.2 in my application.

    On Internet Explorer 11, I have noticed that as i am switching between views, the memory usage in windows task manager is constantly increasing.

    And eventually leading in putting browsers in not responding mode.

    I have observed same thing for ExtJS example http://docs.sencha.com/extjs/4.2.1/#...h-classes.html.

    Is there anyway to prevent such memory leakage?

  2. #2
    Sencha User slemmon's Avatar
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    You might check out the following guide:
    http://docs.sencha.com/extjs/5.0/cor...anagement.html

    If you still believe you have a memory leak issue can you post a test case and steps to reproduce the issue where the browser becomes unresponsive?

  3. #3
    Sencha User
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    Thanks for the reply.

    I am using ExtJS 4.2.2, not using 5.0

    And i am able to reproduce it with ExtJS standard example
    http://docs.sencha.com/extjs/4.2.1/#...h-classes.html

  4. #4
    Sencha User slemmon's Avatar
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    Hi,

    What steps are you taking with the example at http://docs.sencha.com/extjs/4.2.1/#...h-classes.html where you're seeing the memory increase and not get reclaimed?

  5. #5
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    Open http://docs.sencha.com/extjs/4.2.1/#...h-classes.html in Internet Explorer and just refresh the page.

    In windows task manager, you will see memory usage of IE process increases on every page refresh.

    This is happening only in case of ExtJS pages. For normal JavaScript, memory usage seems to be stable.

  6. #6
    Sencha User slemmon's Avatar
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    Thanks for the report! I have opened a bug in our bug tracker.

  7. #7
    Sencha User
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    Hi,We are also using ExtJS 4.2.2, seeing a memory leak in IE9-IE11 even after navigating away from the page.Can we get more details on this bug and how it was fixed?

  8. #8
    Sencha User
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    Quote Originally Posted by dannylib View Post
    Hi,We are also using ExtJS 4.2.2, seeing a memory leak in IE9-IE11 even after navigating away from the page.Can we get more details on this bug and how it was fixed?
    As per sencha, this issue is fixed in ExtJS 6.

    But for ExtJS 4.2.2 this issue is still open.

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