Internet Explorer automatically switches to compatibility mode (IE9 and IE10)
问题 On certain page on my site, Internet Explorer automatically switches to compatibility mode and tries to render the page in compatibility view (IE7 mode). Also the URL gets added to the compatibility view list. 回答1: In my case, it happened due to some CSS using Type 1 font ( Helvetica ). Internet Explorer changed its font-rendering from IE9 (affects IE10 as well) which does not support the old Type 1 fonts. But still some users manually install fonts (for me, it was Helvetica, tested on