Bug 432818 - Moving a tab for a channel called "#" triggers problems

r=silver@warwickcompsoc.co.uk (James Ross)
ChatZilla Only. a=NPOTB.

extensions/irc/js/lib/irc.js

@@ -2801,7 +2801,7 @@ function chan_geturl()
     var target = this.encodedName;
     var flags = this.mode.key ? ["needkey"] : [];
 
-    if ((target[0] == "#") &&
+    if ((target[0] == "#") && (target.length > 1) && 
         arrayIndexOf(this.parent.channelTypes, target[1]) == -1)
     {
         /* First character is "#" (which we're allowed to omit), and the