We have an ASP.NET MVC application that just recently started forcing IE into IE9 Compatibility view when loading. We have added the following to our Layout pages
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
or
<meta http-equiv="X-UA-Compatible" content="IE=9" />
But the page still forces IE to compatibility mode. The issue is that we only support IE 8 and up so when we perform our server side check, it thinks the browser is IE 7 and tells the user to upgrade their browser.
Anyone know why a given browser would completely ignore the X-UA-Compatible tag and render the page in compatibility mode?