IE9's support for SVG elements unfortunately does not extend to clear…

…Attributes. Checks for its presence before proceeding.

src/manipulation.js

@@ -388,11 +388,15 @@ function cloneFixAttributes( src, dest ) {
 
 	// clearAttributes removes the attributes, which we don't want,
 	// but also removes the attachEvent events, which we *do* want
-	dest.clearAttributes();
+	if ( dest.clearAttributes ) {
+		dest.clearAttributes();
+	}
 
 	// mergeAttributes, in contrast, only merges back on the
 	// original attributes, not the events
-	dest.mergeAttributes(src);
+	if ( dest.mergeAttributes ) {
+		dest.mergeAttributes( src );
+	}
 
 	// IE6-8 fail to clone children inside object elements that use
 	// the proprietary classid attribute value (rather than the type

test/unit/attributes.js

@@ -285,7 +285,7 @@ test("attr(String, Object)", function() {
 	equals( "button", button.attr("type"), "Verify that you can't change the type of a button element" );
 
 	// Setting attributes on svg elements (bug #3116)
-	var $svg = jQuery("<svg xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' version='1.1' baseProfile='full' width='3000' height='3000'>"
+	var $svg = jQuery("<svg xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' version='1.1' baseProfile='full' width='200' height='200'>"
 		+ "<circle cx='200' cy='200' r='150' />"
 	+ "</svg>").appendTo("body");
 	equals( $svg.attr("cx", 100).attr("cx"), "100", "Set attribute on svg element" );