[HOWTO] Internet Explorer 8 Compatibility

[manni]

Hello everyone,

we've got some issues here with internet explorer 8 and our clients, which cannot work with plesk anymore after updating to microsofts new browser.
It's bad for customers, if they have to start compatibility mode for internet explorer 7 in their browser so here is a simple bugfix.

Goto /opt/psa/admin or /usr/local/psa/admin (just where your plesk installation is)
and move into directory conf.

Create a file "httpsd.ie8comp.include" and insert the following:
LoadModule headers_module libexec/mod_headers.so
Header set X-UA-Compatible "IE=EmulateIE7"

Works just fine for our servers. This solution is tested with plesk 7 and plesk 8 - NOT WORKING WITH VERSION 9.

Best Regards from Austria!
Manuel

 

[JTRipper]

Great Idea,

but for windows version ?

 

[manni]

Hi,

as I don't work with Plesk for Windows I do not know how to do it. But you could give me access to your server and I'll check it ;-)

Plesk uses now it's own webserver (starting up from version 9.0) and there is now way (as it seems to me know) to put in a ie-8-compliant code.


Manuel

 

[realaaa@]

Manuel, thank you so much for posting this workaround here! I was just dealing with the same issue and without your advise I would have spent much more time!

Allow me to enhance your solution on Plesk 9 for Unix as well

Indeed, since Plesk 9 new control panel web server was introduced - and it is based on lighttpd:

# rpm -qi sw-cp-server-1.0-5.200902131203.centos5
Name        : sw-cp-server                 Relocations: (not relocatable)
Version     : 1.0                               Vendor: SWsoft, Inc.
Release     : 5.200902131203.centos5        Build Date: Fri 13 Feb 2009 03:05:32 PM JST
Install Date: Thu 30 Apr 2009 09:57:16 AM JST      Build Host: bcos5.plesk.ru
Group       : System Environment/Daemons    Source RPM: sw-cp-server-1.0-5.200902131203.centos5.src.rpm
Size        : 1252127                          License: Revised BSD
Signature   : (none)
Packager    : SWsoft, Inc. <[email protected]>
Summary     : SWsoft control panels server
Description :
HTTP server for SWsoft control panels based on lighttp

So - for Plesk 9 we should basically do the same - add X-UA-Compatible: IE=EmulateIE7 header to lighttpd output. In lighttpd you just need to add:

1) "mod_setenv" module to Plesk CP configuration
2) setenv.add-response-header = ( "X-UA-Compatible" => "IE=EmulateIE7" ) directive to each virtual host (8443 and 8880)

Just like this:

# pwd
/etc/sw-cp-server/applications.d

# diff plesk.conf plesk.conf.bak
1c1
< server.modules += ("mod_expire", "mod_fastcgi", "mod_rewrite", "mod_accesslog", "mod_alias", "mod_compress","mod_setenv")
---
> server.modules += ("mod_expire", "mod_fastcgi", "mod_rewrite", "mod_accesslog", "mod_alias", "mod_compress")
10d9
<     setenv.add-response-header = ( "X-UA-Compatible" => "IE=EmulateIE7" )
57d55
<     setenv.add-response-header = ( "X-UA-Compatible" => "IE=EmulateIE7" )

# grep -B 1 setenv.add-response-header plesk.conf
$SERVER["socket"] == ":8443" {
    setenv.add-response-header = ( "X-UA-Compatible" => "IE=EmulateIE7" )
--
$SERVER["socket"] == ":8880" {
    setenv.add-response-header = ( "X-UA-Compatible" => "IE=EmulateIE7" )

After sw-cp-server restart:

# /etc/init.d/sw-cp-server stop
Stoppping SWsoft control panels server... stale pidfile.   [  OK  ]

# /etc/init.d/sw-cp-server start
Starting SWsoft control panels server...                   [  OK  ]

.. you can verify that header is being added by checking the control panel or just by getting any answer from the web server:

# telnet 192.168.5.68 8880
Trying 192.168.5.68...
Connected to 192.168.5.68.
Escape character is '^]'.
GET / HTTP/1.1
host:plesk860.com

HTTP/1.1 200 OK
Transfer-Encoding: chunked
X-UA-Compatible: IE=EmulateIE7    <---!!! here it is
Expires: Fri, 28 Aug 2009 00:56:35 GMT
Expires: Fri, 28 May 1999 00:00:00 GMT
Cache-Control: max-age=2592000
Cache-Control: no-store, no-cache, must-revalidate
Cache-Control: post-check=0, pre-check=0
Last-Modified: Wed, 29 Jul 2009 00:56:36 GMT
Pragma: no-cache
P3P: CP="NON COR CURa ADMa OUR NOR UNI COM NAV STA"
Content-type: text/html
Date: Wed, 29 Jul 2009 00:56:36 GMT
Server: sw-cp-server/1.0.0

3c4

                <html><head><title></title>
                <script language="javascript" type="text/javascript" src="/javascript/common.js?plesk_version=psa-9.2.2-92090714.19"/></script>
                <script language="javascript" type="text/javascript" src="/javascript/prototype.js?plesk_version=psa-9.2.2-92090714.19"></script>
                <script>
                        var opt_no_frames = false;
                        var opt_integrated_mode = false;
                </script>

                </head><body onLoad=";top.location='/login.php3';"></body></html><!--______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________IE error page size limitation______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________-->
0


^]
telnet> quit
Connection closed.

Btw, in Plesk 8.6 I did it by modifying main file (httpsd.conf) and it was also needed to add AddModule mod_headers.c directive:

# pwd
/usr/local/psa/admin/conf

# diff httpsd.conf httpsd.conf.bak
232d231
< LoadModule headers_module libexec/mod_headers.so
259d257
< AddModule mod_headers.c
463,464d460
< Header set X-UA-Compatible "IE=EmulateIE7"
<

 

[realaaa@]

btw, JTRipper, I think in Windows it should be even simpler since usually Plesk CP is just another virtual host in IIS (if you haven't switched it to Apache of course). And as I understand it is possible to add custom header to output in IIS as well.

Although I didn't do it in Windows so I can't advise anything specific on this matter.

 

[KingSky]

Plesk also has a knowledgebase article on doing this here:
http://kb.odin.com/en/6561

Pretty much the same instructions as above though

 

[manni]

hi guys,

I know the official plesk article and I think it's pretty funny that Parallels uses user-comment's, but they never do anything like a "thank you"...

It's really sad, that they don't communicate with their customers (like forum users)

manuel

 

[realaaa@]

oh, don't worry, Manuel, I myself asked to create that KB article for everybody's sake, and I did get my "thanks"

 

[lvalics]

but is still strange why a patch is not out yet.

 

[realaaa@]

oh, don't worry, Manuel, I myself asked to create that KB article for everybody's sake, and I did get my "thanks"

and yes, I did mention this topic so your input is as well appreciated!

but is still strange why a patch is not out yet.

indeed, Plesk updates are not as frequent as we wish, I hope this will be changed to Virtuozzo policy - monthly updates.

 

[sreese]

Hello,

I could really use a solution to this that works for Plesk in Windows. I tried adding the custom header in IIS but that doesn't seem to work. Any ideas?

Thanks,
Scott

 

[sreese]

...and of course right after I submit my first post, I figure it out.

In case anyone else happens across this article and wonders how to get this to work for Windows, here's how:

1) Open up IIS Manager
2) Find PleskControlPanel under Web Sites, right-click and select Properties
3) Go to the Http Headers tab and click Add
4) For "custom header name" put in "X-UA-Compatible" (without the quotes) and for "custom header value" put in "IE=EmulateIE7" (again without the quotes) and click OK, then Apply.

You might need to restart the web site for it to take effect. This works in IIS 6 with Windows 2003 Server.