I've got very curious case in IE8 where media query is not working on URL (mobile view shows on desktop) but If I use IP address than it works (desktop view shows). I tried a whole lot of things even several solutions from stackoverflow but couldn't succeed. It seems like respond.js issue but I'm not sure. Can anyone please help me on this.
URL: https://www.uhc.com/
IP: 149.111.148.170
FYI: I'm using IE 11 developer Tool to check it on IE8.