[TYPO3-english] Typo3 strange html "repair"

[Pero Matic]

Pero Matic wrote:
> Hi. I made some changes to one extension which returns piece of html.
> In that piece of html there is also this:
>
> <option value="1" selected="">Something</option>
>
> The problem is that my original $content value prior to return from
> extension class looks like:
>
> <option value="1" selected>Something</option>
>
> I made echo $content; prior to return from class so I know this for
> sure.
> Now, does anybody knows where this ="" (in front of selected) came
> from ??? Thx!

It seem i found it.

config.xhtml_cleaning = all

is causing this.