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Added an extra documentElement check to isXMLDoc for IE - and added a number of unit tests for isXMLDoc. Fixes #4833.

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This commit is contained in:
John Resig
2009-07-27 13:02:41 +00:00
parent cae93c39eb
commit 2cd9ee3510
2 changed files with 38 additions and 2 deletions
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5
src/core.js
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@@ -313,7 +313,10 @@ jQuery.extend({
// check if an element is in a (or is an) XML document
isXMLDoc: function( elem ) {
return (elem.ownerDocument || elem).documentElement.nodeName !== "HTML";
// documentElement is verified for cases where it doesn't yet exist
// (such as loading iframes in IE - #4833)
var documentElement = (elem.ownerDocument || elem).documentElement;
return !!documentElement && documentElement.nodeName !== "HTML";
},
// Evalulates a script in a global context