Need help troubleshooting a bug with IE11 and Windows 7

2 posts, 0 answers
  1. Ngoc
    Ngoc avatar
    2 posts
    Member since:
    Apr 2009

    Posted 12 Aug 2015 Link to this post

    We have a .Net application that is having rendering issue with IE11 on Windows 7.  It works fine on previous versions of IE.  The application is running in IE7 compatibility mode.  (It's also working on IE11 on Windows 8).  The issue that we are experiencing is that the page loads and displays correctly but then a good portion of the page disappears.  The page uses a third party control to display various contents and page menus.  Everything below the header menu disappears.  When Fiddler is running, the page loads and displays correctly and we do not experience the problem.  When Fiddler is not running, the issue reappears.  In other words, with Fiddler acting as a proxy, the problem goes away.  I did a .Net trace on the page load and when it's not displaying correctly, I noticed that two session objects that are set in one of the the control page_unload event is not set.  In other words, the control is probably erroring out and not firing the page_unload event.  Any suggestions on how to identify the error and resolve the issue would be greatly appreciated.
  2. Eric Lawrence
    Eric Lawrence avatar
    832 posts

    Posted 13 Aug 2015 Link to this post

    Ensure you have the latest Fiddler installed (v2.6/4.6). Inside Tools > Fiddler Options > General, set the Protocol Violations dropdown to All Errors. Do you see any protocol violation warnings when you load the page in question?

    If that doesn't turn anything up, it's not likely Fiddler can help you; you should use the F12 Developer Tools inside IE itself.

    Eric Lawrence
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