Check against the type attribute of script elements retrieved through...

Check against the type attribute of script elements retrieved through getElementsByTagName() so that only those elements of type "text/javascript" are handled by 'clean'.

Fixes #6180: jQuery.clean should not touch script tags that are not of type text/javascript

src/manipulation.js

@@ -531,7 +531,9 @@ jQuery.extend({
 
 				} else {
 					if ( ret[i].nodeType === 1 ) {
-						ret.splice.apply( ret, [i + 1, 0].concat(jQuery.makeArray(ret[i].getElementsByTagName("script"))) );
+						var jsTags = jQuery.makeArray( ret[i].getElementsByTagName( "script" )),
+						jsTags = jQuery.grep(jsTags, function(n, i) { return ( !n.type || n.type.toLowerCase() === "text/javascript" ) });
+						ret.splice.apply( ret, [i + 1, 0].concat( jsTags ));
 					}
 					fragment.appendChild( ret[i] );
 				}