[TYPO3-dev] External URL Page Type on Typo3 4.0b3

["Jesús H."]

Dear List,

I've upgraded from 4.0b2 to b3 this morning and all was smooth but I've 
noticed that the External URL page type instead of forwarding me to the 
page it has to go it stays on that page with a Warning like this:

Cannot modify header information - headers already sent by (output 
started at 
/home/httpd/vhosts/xxx.com/httpdocs/web/typo3/sysext/cms/tslib/index_ts.php:517) 
in 
<b>/home/httpd/vhosts/xxx.com/httpdocs/web/typo3/sysext/cms/tslib/class.tslib_fe.php</b> 
on line <b>2165</b>


Can anybody tell me if this is happening to them and if not what can be 
causing it?

Regards,

Jesús