diff --git a/javascript/LeftAndMain_right.js b/javascript/LeftAndMain_right.js
index 58d7d2d5..1474ba61 100755
--- a/javascript/LeftAndMain_right.js
+++ b/javascript/LeftAndMain_right.js
@@ -448,6 +448,6 @@ window.name = windowName('cms');
  * Return a unique window name that contains the URL
  */
 function windowName(suffix) {
-	var base = document.getElementsByTagName('base')[0].href.replace('http://','').replace(/\//g,'_').replace(/\./g,'_');
+	var base = document.getElementsByTagName('base')[0].href.replace('~','').replace('http://','').replace(/\//g,'_').replace(/\./g,'_');
 	return base + suffix;
 }
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