K2 Smartform viewer Error - compatibility mode is not supported

  • 16 February 2021
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MillaZ
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K2 Smartform viewer Error - "compatibility mode is not supported"

kbt130124

PRODUCT
K2 blackpearl
This article was created in response to a support issue logged with K2. The content may include typographical errors and may be revised at any time without notice. This article is not considered official documentation for K2 software and is provided "as is" with no warranties.
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This article has been archived, and/or refers to legacy products, components or features. The content in this article is offered "as is" and will no longer be updated. Archived content is provided for reference purposes only. This content does not infer that the product, component or feature is supported, or that the product, component or feature will continue to function as described herein.

Issue

We are running SharePoint 2013 in 2010 compatibility mode. K2 Smartform viewer webpart is not loading SmartForms and an error appears in K2 4.6.11:

"Your browser's compatibility mode is not supported"

After removing K2 SmartForm from Compatibility Mode as described in this article: https://help.k2.com/kb001704.aspx, the issue persists.

Symptoms

This issue may be caused by SharePoints master page compatibility.

Resolution

In addition to the change in the website you linked to, please change the SharePoints master page compatibility meta tag to IE=11 instead of IE=8. 
 

Note that this should be done specifically to pages that house K2 Forms as changing the document mode in SP 2010 can make some ribbon controls not function properly.

Additionally, you may be able to change the document mode via IIS, specifically for the K2 Runtime site, by modifying the 'X-UA-Compatible' HTTP Response Header on the K2 - Runtime site in IIS. The field should have values similar to the following: "IE=11,IE=10,IE=9,IE=8".

Removing the lower versions would force Internet Explorer into a modern Document Mode for Runtime SmartForms, which may resolve this issue.

Check out these Nintex University Learning paths: https://community.nintex.com/p/NintexUniversity

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