Use the InnerHTML property to insert the character times into the head "the InnerHTML property cannot be set. The target component for this operation is invalid "error

Insert the script file dynamically into the head with the following code:

var sc = document.createelement ("script"= "//www.chinanews.com/ie8/js/json2.min.js"; var head = document.getElementsByTagName ("head") [0];head.appendchild (SC);

But the following code to insert is as follows:

<!--[if Lt IE 9]>  <script src= "/ie8/js/json2.min.js" >  </script><![ Endif]-->

The innerHTML attribute of the HTML DOM is used to put the above code in a string and into the head

var jsonstr = ' <!--[if LT IE 9]><script src= "/ie8/js/json2.min.js" ></script><! [endif]--> '; var head = document.getElementsByTagName ("Head") [0];head.innerhtml = head.innerhtml + jsonstr;

Gets the characters from the previous head and adds a new string, but in IE, the InnerHTML property cannot be set. The target component for this operation is invalid "error.

http://w3help.org/zh-cn/causes/BX9046

Finally, by judging whether the browser is IE and version, add JS file dynamically

if ((Navigator.userAgent.indexOf (' MSIE ') >= 0) && (navigator.userAgent.indexOf (' Opera ') < 0)) {// determine if it is IE browser        if (Isiever (7) | | isiever (8) | | isiever (6)) {            = document.createelement ("script");                = "/ie8/js/json2.min.js";              Head.appendchild (Json2);        }}

http://blog.csdn.net/smilepi/article/details/21076097

Use the InnerHTML property to insert the character times into the head "the InnerHTML property cannot be set. The target component for this operation is invalid "error