K2 Smartform viewer Error - "compatibility mode is not supported"
kbt130124
PRODUCTIssue
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.
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.