Force Internet Explorer 9 to use IE 9 Mode
问题 I'm using the HTML5 doctype with X-UA-Compatible meta tag near the top: <!DOCTYPE html> <!--[if lt IE 7]> <html lang="en-us" class="ie6"> <![endif]--> <!--[if IE 7]> <html lang="en-us" class="ie7"> <![endif]--> <!--[if IE 8]> <html lang="en-us" class="ie8"> <![endif]--> <!--[if gt IE 8]><!--> <html lang="en-us"> <!--<![endif]--> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> ... But Internet Explorer 9 for some users is rendering the page in