We are having issues with our ASP.NET Web Forms application defaulting to document mode 5 for IE11. We tried putting X-UA-Compatible in meta tags in the ASPX pages and in the HTTP Header (iis7.5). This works on development and test server, but not production. Production still goes to 5 regardless of our Meta tags or HTTP Header.
Does anyone have any suggestion on how to troubleshoot this?
Thank you,