diff --git a/vasl_templates/webapp/static/vo.js b/vasl_templates/webapp/static/vo.js
index 4227905..79bf512 100644
--- a/vasl_templates/webapp/static/vo.js
+++ b/vasl_templates/webapp/static/vo.js
@@ -454,7 +454,7 @@ function make_online_counter_image_url( gpid, index )
     if ( extn_id )
         url = strReplaceAll( url, "{{EXTN_ID}}", extn_id ) ;
 
-    return url ;
+    return encodeURI( url ) ;
 }
 
 function is_small_vasl_piece( vo_entry )