Compatibility view essentially switches the entire rendering stack & user agent. It even looks like the older version when inspecting many JS functions and such

Compatibility view essentially switches the entire rendering stack & user agent. It even looks like the older version when inspecting many JS functions and such. I'd expect google.com to be fully standards compliant, but for some reason I believe IE was forcing itself back to IE8 mode for it. Never understood why. Even in IE8 mode though, this should have worked fine- so could be something worse (identify as IE8, execute as IE11?).