Internet Explorer 7.x crashes when changing an item from a bulleted list into numbered list

[wittmakl]

Steps to recreate:

• Make a numbered list
• highlight one or several lines within the numbered list (make sure that the first or last line of the list is not highlighted)
• try to change these lines from nubered list to 'bulleted' list
• Internet Explorer will crash

(works vice versa too)

This issue only occurs until IE7.x it does not occur with other browsers or IE version higer than 8.0 For our company it is vital to use CKEdit with IE7.x as our clinical information system is not validated for IE versions higher than IE7.x

[Jakub Ś]

Reproducible from CKE 3.5 in IE7 only.

I have tested the issue with vice versa scenario. I have created 5 bulleted items, selected three of them from item2 to item4 and pressed numbered list button.

[Audrey Tang]

This is still present in IE7 for CKEditor nightly; switching from OL=>UL and UL=>OL crashes the browser.

Would it be possible to disable the corresponding commands for IE7 when we know we're in a list that'd cause this kind of crash?

[Audrey Tang]

I've applied a naïve patch locally that simply disallows list-changing operation for IE6/7:

// list/plugin.js
        function changeListType( editor, groupObj, database, listsCreated )

            if (CKEDITOR.env.ie6Compat || CKEDITOR.env.ie7Compat) {
                alert("Sorry, changing list types is unsupported in IE7 and earlier versions.");
                return;
            }
// ...

[Jakub Ś]

#9035 was marked as duplicate.