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--------- UPDATE 12/06/2012--------- 

Note: this issue should now be fully resolved on Geeks with Blogs as of this morning (12/06/2012).

Some interesting background: After installing the hotfix, IE10 would suddenly no longer login to GWB at all (!!!). So the patch initially made things worse! 

An additional fix was required to ensure IE10 would parse the login page correctly: 

  1. Remove the older doctype declaration of: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  2. Replace it with the newer HTML5 declaration: <!DOCTYPE html>


Then on the actual posting page itself, the "create" and "edit" posts link problems were resolved but the rich text editor became completely disabled! To resolve this I forced IE10 into IE9 mode by adding the standard IE9 meta tag header: <meta http-equiv="X-UA-Compatible" content="IE=9" />

If you're experiencing any issues creating posts on GWB using IE10, please contact me personally at support@geekswithblogs.net. 

--------- END UPDATE--------- 

Benny Mathew recently alerted us that he couldn’t create, edit or delete posts on GeeksWithBlogs in IE10 (Windows 8). It turns out the problem is that ASP.Net fails to detect IE10 causing a javascript error on postback. We’ll be applying a hotfix to the .Net framework on GWB shortly to fix this issue. In the meantime you can use the simple workaround outlined below. (Note that if you create posts using Windows Live Writer you won’t have this issue creating posts).

  1. Log into your GWB Account and go to the “Posts” page.
  2. Hit F12 to bring up the developer window in IE10.
  3. Click on the ‘Browser Mode’ option and change it to IE9.
  4. You should now be able to create/edit/delete posts in GWB.

changeToIE9_screenshot

Note this also fixes any other sites in IE10 that might not yet have the hotfix applied. You can tell if the hotfix is the likely culprit if you’re using IE10 and see the following error in the Web Developers Console area:

SCRIPT5009: '__doPostBack' is undefined

screenshot_ie10_javascript_error

Let us know ASAP if there are other issues you are experiencing that aren’t fixed by this workaround!

Posted on Friday, November 30, 2012 2:22 AM asp.net , ie 10 | Back to top


Comments on this post: ASP.Net Fails to Detect IE10 without .Net Hotfix

# re: ASP.Net Fails to Detect IE10 without .Net Hotfix
Requesting Gravatar...
You can check the blog post http://www.hanselman.com/blog/BugAndFixASPNETFailsToDetectIE10CausingDoPostBackIsUndefinedJavaScriptErrorOrMaintainFF5ScrollbarPosition.aspx
Left by ravi on Dec 03, 2012 1:24 AM

# re: ASP.Net Fails to Detect IE10 without .Net Hotfix
Requesting Gravatar...
I have another great solution. Uninstall IE 10 and use a real browser instead.
Left by Brad on Dec 10, 2012 9:46 AM

# re: ASP.Net Fails to Detect IE10 without .Net Hotfix
Requesting Gravatar...
Do you know about any alternative for browsing web pages in WinRT (Metro style)?
Left by Michal on Dec 10, 2012 10:39 PM

# re: ASP.Net Fails to Detect IE10 without .Net Hotfix
Requesting Gravatar...
Michal: I'm using windows 8 on a regular laptop (not a surface or anything like that) and I usually go into desktop mode (windows-d shortcut), then open chrome from there. Sometimes it opens in metro mode.

Does that answer your question?
Left by Ben Barreth on Dec 11, 2012 12:40 AM

# re: ASP.Net Fails to Detect IE10 without .Net Hotfix
Requesting Gravatar...
EXPLIQUENLE LA SOLUCION A TOWEBS.COM NO ME LO RESULEVEN NUNCA!!!!!!!!!!!!!!!!!!!!!!!!!!
Left by Christian on Aug 06, 2013 4:00 PM

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