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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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@ -313,7 +313,10 @@ jQuery.extend({
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// check if an element is in a (or is an) XML document
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isXMLDoc: function( elem ) {
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return (elem.ownerDocument || elem).documentElement.nodeName !== "HTML";
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// documentElement is verified for cases where it doesn't yet exist
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// (such as loading iframes in IE - #4833)
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var documentElement = (elem.ownerDocument || elem).documentElement;
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return !!documentElement && documentElement.nodeName !== "HTML";
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},
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// Evalulates a script in a global context
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@ -269,6 +269,39 @@ test("isFunction", function() {
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});
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});
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test("isXMLDoc - HTML", function() {
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expect(4);
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ok( !jQuery.isXMLDoc( document ), "HTML document" );
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ok( !jQuery.isXMLDoc( document.documentElement ), "HTML documentElement" );
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ok( !jQuery.isXMLDoc( document.body ), "HTML Body Element" );
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var iframe = document.createElement("iframe");
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document.body.appendChild( iframe );
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try {
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var body = jQuery(iframe).contents().find("body")[0];
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ok( !jQuery.isXMLDoc( body ), "Iframe body element" );
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} catch(e){
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ok( false, "Iframe body element" );
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}
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document.body.removeChild( iframe );
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});
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if ( !isLocal ) {
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test("isXMLDoc - XML", function() {
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expect(3);
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stop();
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jQuery.get('data/dashboard.xml', function(xml) {
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ok( jQuery.isXMLDoc( xml ), "XML document" );
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ok( jQuery.isXMLDoc( xml.documentElement ), "XML documentElement" );
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ok( jQuery.isXMLDoc( jQuery("tab", xml)[0] ), "XML Tab Element" );
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start();
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});
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});
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}
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test("jQuery('html')", function() {
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expect(8);
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@ -611,4 +644,4 @@ test("jQuery.isEmptyObject", function(){
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// What about this ?
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// equals(true, jQuery.isEmptyObject(null), "isEmptyObject on null" );
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});
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});
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