trim limit

index.html

@@ -7602,7 +7602,7 @@
 					idx = Math.min(idx,f);
 				}
 			}
-			if(idx>=0)
+			if(idx>=0 && idx <= 20) //if unable to trim safely (20 char max), do not trim
 			{
 				trim = trim.substring(idx); //no +1, include leading token!
 			}