Javascript functions are not working in IE11

Question

We are using an app which is designed in MVC and Silverlight. That app is working fine in IE10. But we are not able to run the app in IE11. We have set of javascript functions with is used to do validation on our app. Those functions are not at all working. I am getting 'undefined' error. Even i have tried with <meta http-equiv="x-ua-compatible" content="IE=10"> also. If any one can help me, you are my Savior.

Thanks in Advance.

Could you show those functions? It's a bit hard to tell why they are not working without you showing them. — Darin Dimitrov, Jul 15 '13 at 08:17

score 3 · Answer 1 · answered Sep 06 '13 at 06:16

Also note some detection fixes: http://support.microsoft.com/kb/2836939/en-us

More details (for older OS's and .NET versions)

KBs for the IE11 GDR:

2836939 .NET 4 - Win7SP1/Win2K3SP2/Win2K8R2SP1/Win2K8SP2/VistaSP2/WinXPSP3
2836940 .NET 3.5 SP1 - Win2K3SP2/Win2K8SP2/VistaSP2/WinXPSP3
2836941 .NET 2.0 SP2 - Win2K3SP2/WinXPSP3
2836942 .NET 3.5 SP1 - Win7SP1/Win2K8R2SP1
2836943 .NET 2.0 SP2 - Win7SP1/Win2K8R2SP1
2836945 .NET 2.0 SP2 - Win2K8SP2/VistaSP2
2836946 .NET 2.0 SP2 - Win8RTM/WinRTRTM/Win2K12RTM
2836947 .NET 3.5 SP1 - Win8RTM/WinRTRTM/Win2K12RTM

score 1 · Answer 2 · answered Jan 22 '14 at 07:49

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Add localhost to compatibility setting in IE 11.

answered Jan 22 '14 at 07:49

user3222522

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score 0 · Answer 3 · answered Jul 25 '13 at 23:24

If you're doing browser detection or x-ua-compatible, you should not be. There is no guarantee that either of these methods will work in the future.

.NET Browser Definitions will not detect IE11 as Internet Explorer, resulting in the "...undefined" errors.

You should instead use feature detection to determine features supported by the browser.

In a pinch, the only official method (per the IE11 Compatibility Changes guide on Microsoft's site) for detecting IE11 is to check for the "Trident" token in the User Agent.

score 0 · Answer 4 · edited May 23 '17 at 12:05

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I had tried all the hotfixes which described the issue. "Script Error encountered", "'__doPostBack' is undefined" but only solution that worked for me was .NET 4.5 . You can read more about my findings in these questions CrossPostback ,AJAX Controls and ASP.NET generated postbacks work for .NET 4.5 , not .NET 4.0 in IE 11 and WebResource.axd not working with Internet Explorer 11

edited May 23 '17 at 12:05

Community

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answered Sep 23 '13 at 04:38

Rameez Ahmed Sayad

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Javascript functions are not working in IE11

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