Backspace Causes JS Error

Hi,

i've the same problem as you...

i was not able to catch backspace keypress event
so i patched the script by searching "r.getSelection()" in ckeditor.js and wrapped the instruction with "try{ ... }catch(e){}"
it's uggly but it works... (replace 4 times)

sample :
search for...

exec:function(r){var s=r.getSelection(),t=s&&s.getRanges()[0];if(!s||!t)return;var u=s.createBookmarks(true),v=t.getCommonAncestor();while(v&&!(v.type==1&&l[v.getName()]))v=v.getParent();if(v)o.call(this,r,t,v);else p.call(this,r,t);r.focus();r.forceNextSelectionCheck();s.selectBookmarks(u);}

and replace by...

exec:function(r){  try{  var s=r.getSelection(),t=s&&s.getRanges()[0];if(!s||!t)return;var u=s.createBookmarks(true),v=t.getCommonAncestor();while(v&&!(v.type==1&&l[v.getName()]))v=v.getParent();if(v)o.call(this,r,t,v);else p.call(this,r,t);r.focus();r.forceNextSelectionCheck();s.selectBookmarks(u);    }catch(e){}    }