Opened 9 years ago

Closed 9 years ago

#8043 closed Bug (invalid)

IE: Definition list crashes the editor

Reported by: Wiktor Walc Owned by: Wiktor Walc
Priority: Normal Milestone:
Component: General Version: 3.4.2
Keywords: IE Cc: director@…

Description (last modified by Wiktor Walc)

Found in IE8/Quirks, also can be reproduced by setting manually document mode to IE9/Quirks, IE9/IE7 standards, IE8/IE7 standards.

Open the ajax sample, paste the following in source mode:


switch to source mode and back. IE shows an alert message:

Stop running this script? 

A script on this page is causing Internet Explorer to run slowly. 
If it continues to run, your computer might become unresponsive.

The same TC till CKEditor 3.5.2 caused an error "Stack overflow at line 26" so it might be a very similar or exactly the same problem as #7290.

It looks like it is enough to adjust IE detection used in #6975.

Attachments (1)

8043.patch (737 bytes) - added by Wiktor Walc 9 years ago.

Download all attachments as: .zip

Change History (7)

comment:1 Changed 9 years ago by Wiktor Walc

Status: newconfirmed

comment:2 Changed 9 years ago by Frederico Caldeira Knabben

Resolution: duplicate
Status: confirmedclosed

DUP of #6975.

comment:3 Changed 9 years ago by Wiktor Walc

Description: modified (diff)

Hmm it looks I was wrong when reporting it as the issue seems to be gone in the nightly build in IE7, but I still can reproduce it in IE8/quirks.

Last edited 9 years ago by Wiktor Walc (previous) (diff)

Changed 9 years ago by Wiktor Walc

Attachment: 8043.patch added

comment:4 Changed 9 years ago by Wiktor Walc

Description: modified (diff)
Resolution: duplicate
Status: closedreopened

comment:5 Changed 9 years ago by Wiktor Walc

Owner: set to Wiktor Walc
Status: reopenedreview

comment:6 Changed 9 years ago by Wiktor Walc

Resolution: invalid
Status: reviewclosed

Closing as invalid: it can be reproduced only when setting manually document mode to quirks.

Just in case someone noticed it on a page with quirks doctype: make sure you didn't set document mode to quirks manually before in the same tab.

The original TC cannot be reproduced in IE8 with quirks doctype. But if you do the following:

  • open developer tools,
  • set document mode to IE8 standards
  • set document to quirks

then, in the same IE8, in the same quirks mode, this error starts happening.

Because one needs to use developer tools to trigger this bug, I'm closing it as invalid.

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