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Item6302: MS IE slow script warning when editing large tables using WYSIWYG editor

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AppliesTo: Component: Priority: CurrentState: WaitingFor: TargetRelease ReleasedIn
Extension TablePlugin, TinyMCEPlugin, WysiwygPlugin Low New   n/a  

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Summary:
Reported By:
Codebase:
Applies To:
Component:
Priority:
Current State:
Waiting For:
Target Release:
Released In:
 

Detail

Hello and thank you for the TWiki,

With the following active plugins on TWiki 4.3.1:

TablePlugin, TinyMCEPlugin, WysiwygPlugin

and a topic with a large table such as:

A B C D E F G
1            
2            
3            
4            
5            

...cut...

545            
546            
547            
548            
549            
550            

as can be found on:

http://twiki.org/cgi-bin/view/Sandbox/PeterJEdwardsSandbox

and

http://www.twiki.org/cgi-bin/view/Sandbox/RandomTestTopic70716

when editing using the WYSIWYG editor, when hitting save in Microsoft Internet Explorer 7 myself and other users get prompted with a Windows Internet Explorer warning box, it conatins "Stop running this script?", "A script on this page is causing Internet Explorer to run slowly. If it continues to run, your computer may become unresponsive." "Yes" "No".

I get prompted 4 times and I need to click "No" each time in order for the topic edit to save.

I could not reproduce this behaviour using Mozilla Firefox or Chrome. The MS Internet Explorer setting can be adjusted by using a registry key, there is some more information on this and also a comparison of how different browsers detect "slow"/"long running" scripts here:

http://www.nczonline.net/blog/2009/01/05/what-determines-that-a-script-is-long-running/

I don't know if there is anything that can be done to reduce the number of JScript statements needed when saving such a page using the WYSIWYG editor. Just thought I'd mention it, if the behaviour is confirmed then I was thinking of adding it to the page:

http://twiki.org/cgi-bin/view/Support/IeWinBrowserIssues

-- TWiki:Main/PeterJEdwards - 17 Aug 2009

ItemTemplate
Summary MS IE slow script warning when editing large tables using WYSIWYG editor
ReportedBy TWiki:Main.PeterJEdwards
Codebase 4.3.1
SVN Range TWiki-5.0.0, Sat, 18 Apr 2009, build 18024
AppliesTo Extension
Component TablePlugin, TinyMCEPlugin, WysiwygPlugin
Priority Low
CurrentState New
WaitingFor

Checkins

TargetRelease n/a
ReleasedIn

Topic revision: r1 - 2009-08-17 - PeterJEdwards
 
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