U4-572 - JavaScript editor becomes unresponsive when pasting large amounts of code

Created by Sebastiaan Janssen 19 Aug 2012, 14:54:14 Updated by Shannon Deminick 21 Jun 2017, 07:52:13

The built-in script editor in the Settings section is unable to handle large JavaScript files. When pasting jQuery uncompressed (http://code.jquery.com/jquery-1.7.2.js) the editor becomes very unresposive: thirty seconds of 100% CPU to handle a single keystroke.

It is much more responsive when only opening large files (as opposed to pasting the code).

''Originally created on CodePlex by [michielvoo|http://www.codeplex.com/site/users/view/michielvoo]'' on 6/5/2012 5:37:27 PM [Codeplex ID: 30832 - Codeplex Votes: 2]

Imported comments

''Comment by [uniquelau|http://www.codeplex.com/site/users/view/uniquelau] on 6/11/2012 1:54:13 PM:'' I have experienced this problem too, with pasting that jQuery file.

For people working with Visual Studio and build scripts this is not a problem, as it's unlikely you would ever paste.

However for a new user from say a front-end background, this would be an issue.


Shannon Deminick 21 Jun 2017, 07:52:14

Closing issue due to inactivity - see blog post for details https://umbraco.com/blog/issue-tracker-cleanup/

Priority: Normal

Type: Bug

State: Closed


Difficulty: Normal


Backwards Compatible: True

Fix Submitted:

Affected versions:

Due in version:


Story Points: