The document.head in JavaScript is not compatible with IE below.

var url = URL address;   var _script = document.createelement (' script ');   _script.type = "Text/javascript";   _script.src = URL; Document.head.appendChild (_script);

The use of Ajax requests can not cross-domain, so find this string of code, can cross-domain, in Google Firefox above all measured, no problem, the program is all right, but in IE, there is a problem, prompting the code error,

Document.head.appendChild (Element) head is empty.

Change the document.head above to

var head = document.getElementsByTagName ("Head") [0];head.appendchild (Requiretag);

This will be OK. Compatible with all browsers.

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The following is the code I found from the Internet, no test, I do not know whether to use, the back of the test

var Requiretag = document.createelement (' script '); Requiretag.setattribute (' type ', ' text/javascript '); requiretag.se Tattribute (' src ', link+ ' require.js '), Requiretag.setattribute (' Data-main ', link+ ' data ');d Ocument.head.appendC Hild (Requiretag);

This article is from the "Music" blog, be sure to keep this source http://boysmusic.blog.51cto.com/9398683/1758458

The document.head in JavaScript is not compatible with IE below.