Issue #6368: trim text of DOM element before checking

Author: AntonChesnokov

src/features/cellnav/js/cellnav.js

@@ -814,7 +814,7 @@
                   if (originEvt && originEvt.type === 'focus'){return;}
 
                   function setNotifyText(text){
-                    if (text === ariaNotifier.text()){return;}
+                    if (text === ariaNotifier.text().trim()){return;}
                     ariaNotifier[0].style.clip = 'rect(0px,0px,0px,0px)';
                     /*
                      * This is how google docs handles clearing the div. Seems to work better than setting the text of the div to ''