diff --git a/bricks/header.tmpl b/bricks/header.tmpl
index b923d6f..365b145 100644
--- a/bricks/header.tmpl
+++ b/bricks/header.tmpl
@@ -5,7 +5,7 @@
     <meta http-equiv="X-UA-Compatible" content="IE=edge" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
 <link rel="stylesheet" href="{{entire_url('/bricks/3parties/xterm.css')}}" />
-<link rel="stylesheet" href="{{entire_url('/bricks/css/bricks.css')}}?v=20260815c">
+<link rel="stylesheet" href="{{entire_url('/bricks/css/bricks.css')}}?v=20260815d">
 <link rel="stylesheet" href="{{entire_url('/bricks/css/api_doc.css')}}">
 {% for mycss in cssfiles() %}
 <link rel="stylesheet" href="{{entire_url(mycss)}}">
@@ -37,7 +37,7 @@
   <script type="module"
     src="{{entire_url('/bricks/3parties/model-viewer.min.js')}}">
   </script>
-  <script src="{{entire_url('/bricks/bricks.js')}}?v=20260815c"></script>
+  <script src="{{entire_url('/bricks/bricks.js')}}?v=20260815d"></script>
 {% for myjs in jsfiles() %}
   <script src="{{entire_url(myjs)}}"></script>
 {% endfor %}
diff --git a/bricks/svg.js b/bricks/svg.js
index 64492d7..ac5d025 100644
--- a/bricks/svg.js
+++ b/bricks/svg.js
@@ -27,13 +27,18 @@ bricks.Svg = class extends bricks.VBox {
 		var token = this._url_token;
 		if (!url){
 			this.dom_element.innerHTML = '';
+			console.log('SETURL null token=', token);
 			return;
 		}
 		this.url = url;
 		fetch(url)
 			.then(response => response.text())
 			.then(svgText => {
-				if (token !== this._url_token) return;
+				if (token !== this._url_token){
+					console.log('SETURL STALE token=', token, 'cur=', this._url_token, 'url=', url);
+					return;
+				}
+				console.log('SETURL RENDER url=', url, 'len=', svgText.length);
 				if (svgText.startsWith("<svg ")){
 					this.svgText = svgText;
 					this.set_colored_svg(this.color);