FF: JS error when inserting elements after HTML with comments.

[Jakub Ś]

Ticket has been reported on our support channel - Topic - "Possible bug: HTML comments cause Javascript error when integrating CKFinder with CKEditor"

1. Insert on of the following

   <!--A comment-->
   <div><!--A comment--></div>
   <div>Something else</div><!-- A comment -->
   <div><div>Something else</div><!-- A comment --></div>
   

2. Try to insert Image/Table/Link/Page break using toolbar buttons.
3. After pressing OK JS error pops out.

The error:
Message: startNode.getChildCount is not a function
Line: 792
URI: ckeditor/_source/core/dom/range.js

Bug is only reproducible in Firefox 4-10 and IE 6-9 (FF 3.6 is fine).

Ticket has been reproducible from CKE 3.6.1 rev [6963]

NOTE:
Before this revision another error was thrown (from CKE 3.3)
Message: startContainer.getChild is not a function
URI: /3.6/_source/core/dom/range.js
Line: 1472

[Jakub Ś]

Similar problem: #8732

Other related to problems with HTML comments: #8640, #8216, #8129, #6709, #8812

[Frederico Caldeira Knabben]

I as not able to reproduce this issue on trunk.

There is one thing that is not clear for me in the tc... where should the selection be before trying to insert?

[Jakub Ś]

I can still reproduce it on trunk.

1. Paste in source mode <!--A comment-->
2. switch to wysiwyg
3. Click behind comment (In my case when I do click cursor is in the same line as comment but far to the right - below background color button)
4. insert table

Reproducible only in IE.

[Frederico Caldeira Knabben]

#8812 must be closed first, because both fixes are required to have this ticket fixed.

[Frederico Caldeira Knabben]

This one is supposed to get fixed by #8812.

[Jakub Ś]

Working on a current trunk.