When compatibility view has been disabled in all ways possible it seems that Internet Explorer 11 on Windows 8.1 honours a website’s X-UA-Compatible
value†. This happens outside of compatibility view (the icon is missing from the address bar) and is not caused by compatibility lists or a <!DOCTYPE>
directive.
Is there any way for the user (not the web developer) to choose a document mode for a website, overriding the website’s X-UA-Compatible
value?
Force Internet Explorer 10 to open in non-compatibility view has accepted an answer that works by defining the default document mode with regard to the <!DOCTYPE>
directive. I've tried the registry trick without success. While it may have solved the problem for the other author’s question, my question has to do with X-UA-Compatibile
headers.
† Picasa Web Albums defines X-UA-Compatible
as IE=EmulateIE7
. Opening the F12 developer tools and switching document mode from 7 to anything newer (8, 9, 10, Edge) instantly fixes the website. However changes done through the developer tools do not persist.