https://bugzilla.wikimedia.org/show_bug.cgi?id=19334
Web browser: Internet Explorer 8.x
Summary: Textarea jumps when editing articles unless IE8
compatibility mode is on
Product: MediaWiki
Version: unspecified
Platform: All
URL: http://en.wikibooks.org/w/index.php?title=Talk:Main_Page
&action=edit
OS/Version: Windows Vista
Status: NEW
Severity: normal
Priority: Normal
Component: Page editing
AssignedTo: wikibugs-l@lists.wikimedia.org
ReportedBy: greenrea...@hotmail.com
On IE8, when editing a long article, the text being entered will jump/scroll to
the bottom of the textarea as you type. This is very annoying for editors who
choose to use IE (yes, there are some), who have to, or who just don't know any
better (they both deserve our pity).
The issue appears to be the handing of the editing textarea when its width is
set to 100%. This appears to have previously been "fixed" by reducing the width
to 96% for IE. IE8 does not change the situation but does prevent this fix from
working - unless it is in its "IE7 compatibility mode".
If a website is on this list, it will automatically have IE7 compatibility mode
applied:
res://iecompat.dll/iecompatdata.xml (accessible only from within IE8)
This includes all subdomains of wikimedia.org, wikipedia.de, wikipedia.org and
wiktionary.org, but not all Wikimedia sites, and obviously not *most*
third-party users (wikia.com and wikihow.com got lucky).
If the default cannot be fixed to work in IE8 and everything else, a "solution"
might be to add one of:
The HTTP header: 'X-UA-Compatible: IE=EmulateIE7'
The meta tag: '<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />'
This would force IE7 compatibility mode as described in
http://blogs.msdn.com/ie/archive/2008/06/10/introducing-ie-emulateie7.aspx
It should also be possible to detect IE8 by searching the User-Agent for
'Trident/4.0' and only sending the header or meta tag then. User agents - along
with other details of compatibility mode - are given at
http://blogs.msdn.com/ie/archive/2008/08/27/introducing-compatibility-view.aspx
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