SID-01452: TinyMCE does not work with Internet Explorer 9

Status:	Answered	TWiki version:	4.3.2	Perl version:	5.8
Category:	CategoryBrowser	Server OS:	RedHat Linux	Last update:	10 years ago

Problems occur when using the WYSIWYG editor with the IE9 browser.

The editor fails to produce the text in WYSIWYG mode and the text area is not writable.

I was able to re-produce this on 4.3.2 and 5.1.1.

Can anyone else confirm this?

-- PeterJones - 2012-04-23

Discussion and Answer

Seems to be a known issue. Play around with the compatibility mode. Please report back here so that we can update the docs.

-- PeterThoeny - 2012-04-23

Indeed using compatibility mode works fine

Users need to press ALT then Tools -> compatibility mode. The WYSIWYG editor will then work

-- PeterJones - 2012-04-24

I added the following line to httpd.conf to solve the problem

Header set X-UA-Compatible "IE=EmulateIE8"

after sections loading modules (you need to have headers_module modules/mod_headers.so)

-- PeterJones - 2012-04-25

This problem just appeared with IE10 and TWiki-5.1.4, first time we have seen it here.

The Compatibility View work around is satisfactory but our user base will hate it.

Nailing httpd.conf to IE8 emulation works well and is transparent to the users but I wonder if it might introduce other problems as IE matures.

Is there any new information on what is changing in IE to cause this problem?

-- Bill Kanawyer - 2013-08-12

This is likely fixed in the latest TinyMCE editor. Some needs to update the plugin in TWiki. Sponsored work appreciated.

-- Peter Thoeny - 2013-08-12

Putting in the work around, Header set X-UA-Compatible "IE=EmulateIE8", did get the editor to work in 4.3.2, but it broke the downloading of visio attachments in IE.

I was able to fix this problem by adding the following line to the httpd.conf file:

Addtype application/x-visiotech vsd

-- Greg Neugebauer - 2014-01-08

Closing this question after more than 30 days of inactivity. Feel free to reopen if needed. Consider engaging one of the TWiki consultants if you need timely help. We invite you to get involved with the community, it is more likely you get community support if you support the open source project!

-- Peter Thoeny - 2015-12-03

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