New posts in X Ua Compatible

"X-UA-Compatible" content="IE=9; IE=8; IE=7; IE=EDGE"

Bad value X-UA-Compatible for attribute http-equiv on element meta

What does <meta http-equiv="X-UA-Compatible" content="IE=edge"> do?

How to forcefully set IE's Compatibility Mode off from the server-side?

X-UA-Compatible is set to IE=edge, but it still doesn't stop Compatibility Mode

Force "Internet Explorer 8" browser mode in intranet