{var%20f='http://v.t.sina.com.cn/share/share.php?appkey=1515056452',u=z||d.location,p=['&url=',e(u),'&title=',e(t||d.title),'&source=',e(r),'&sourceUrl=',e(l),'&content=',c||'gb2312','&pic=',e(p||'')].join('');function%20a(){if(!window.open([f,p].join(''),'mb',['toolbar=0,status=0,resizable=1,width=440,height=430,left=',(s.width-440)/2,',top=',(s.height-430)/2].join('')))u.href=[f,p].join('');};if(/Firefox/.test(navigator.userAgent))setTimeout(a,0);else%20a();})(screen,document,encodeURIComponent,'','','https://www.manongdao.com/data/attach/logo/logo.png', '推荐 走好不送 的问题《FileReader and JSON objects not defined in ie11》','https://www.manongdao.com/q-357522.html','页面编码gb2312|utf-8默认gb2312'));){kind=link}
Whenever trying to open a page running a javascript code using FileReader and JSON upon page initialization, ie11 reports "FileReader is not defined", and later "JSON is not defined". The head of HTML file is as follows:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>LogViewer</title>
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" />
<link rel="stylesheet" href="css/slick.grid.css" type="text/css"/>
<link rel="stylesheet" type="text/css" href="css/style.css" />
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js" type="text/javascript"></script>
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js" type="text/javascript"></script>
</head>
Everything works fine in FF and Chrome. Any ideas?
Add
<meta http-equiv="X-UA-Compatible" content="IE=edge" />as the first tag of the header to be sure. IE loves to go to compatibility mode even if a HTML5 doctype is present under certain circumstances (especially on intranet files when the computer is in a domain).You can use the developer tools (F12) to check what mode you are running in.