diff --git a/editor/extensions/imagelib/index.html b/editor/extensions/imagelib/index.html
index f5b674a4..0c39c28b 100644
--- a/editor/extensions/imagelib/index.html
+++ b/editor/extensions/imagelib/index.html
@@ -1,14 +1,15 @@
-<!doctype html>
+<!DOCTYPE html>
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<meta charset="utf-8" />
 <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
-
-
+</head>
 <body>
 
 <h1>Select an image:</h1>
 <a href="smiley.svg">smiley.svg</a>
 <br>
 <a href="../../images/logo.png">logo.png</a>
-</body>
 
 <script>
 
@@ -62,3 +63,5 @@ $('a').click(function() {
 });
 
 </script>
+</body>
+</html>
diff --git a/editor/svg-editor.js b/editor/svg-editor.js
index 8f7e795a..970b6f9e 100644
--- a/editor/svg-editor.js
+++ b/editor/svg-editor.js
@@ -4612,7 +4612,7 @@
 			try {
 				window.addEventListener('message', function(e) {
 					// We accept and post strings for the sake of IE9 support
-					if (typeof e.data !== 'string') {
+					if (typeof e.data !== 'string' || e.data.charAt() === '|') {
 						return;
 					}
 					var data = JSON.parse(e.data);
