diff --git a/src/wp-admin/js/svg-painter.js b/src/wp-admin/js/svg-painter.js
index 6810fd2..7b68760 100644
--- a/src/wp-admin/js/svg-painter.js
+++ b/src/wp-admin/js/svg-painter.js
@@ -13,7 +13,7 @@ wp.svgPainter = ( function( $, window, document, undefined ) {
 
 	$(document).ready( function() {
 		// detection for browser SVG capability
-		if ( document.implementation.hasFeature( 'http://www.w3.org/TR/SVG11/feature\#Image', '1.1' ) ) {
+		if ( document.implementation.hasFeature( 'http://www.w3.org/TR/SVG11/feature#Image', '1.1' ) ) {
 			$( document.body ).removeClass( 'no-svg' ).addClass( 'svg' );
 			wp.svgPainter.init();
 		}