[TYPO3-core] RFC #14442: Backend lacks a clean way for CSS browser conditions

Jigal van Hemert jigal at xs4all.nl
Thu May 20 13:28:57 CEST 2010


Steffen Kamper wrote:
> Jigal van Hemert schrieb:
>> Steffen Gebert wrote:
>>> Problem:
>>> We currently have no clean way to provide browser-specific CSS in BE.
>>>
>>> Solution:
>>> Add a few classes to the body tag, dependent on the HTTP user agent, 
>>> like
>>
>> -1 because t3lib_utility_Client::getBrowserInfo() is buggy. Depending 
>> on this function can easily destroy the BE layout. The IE8 on my Vista 
>> installation is for example detected as IE6 by this function.
>>
> 
> it's not buggy, that's it what browser sends. If your IE8 sends IE6 you 
> may be in compatibility mode.

I didn't mean to hurt your feelings, but if it doesn't detect the 
browser correctly in two cases (Chrome is seen as Safari) on a single 
computer then I must conclude it's buggy (sorry).

Checked this, but IE is *not* in compatibility mode.

It simply sends the user agent string:
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; 
Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; SLCC1; .NET 
CLR 2.0.50727; .NET CLR 1.1.4322; .NET CLR 3.5.30729; .NET CLR 3.0.30729)

So it reports that it is MSIE 8.0, but getBrowserInfo() decides to use 
the last name/version it finds. Therefore it detects is as MSIE 6.0.

As already pointed out in the other thread in the dev list, [1] has a 
list of many user agents as seen "in the wild".

[1] http://chrisschuld.com/proj/Browser/useragents.txt

-- 
Jigal van Hemert
skype:jigal.van.hemert
msn: jigal at xs4all.nl
http://twitter.com/jigalvh


More information about the TYPO3-team-core mailing list