[Falcon Capt]

Originally Posted by Boofo

Is there anyway to check if the browser handles js and use the regular link for those occasions that it doesn't?

The browser does handle js. If I remove the following code from FORUMDISPLAY.PHP it works properly:

// Prevent CSRF. See #32785
$vbulletin->input->clean_array_gpc('r', array(
'markreadhash' => TYPE_STR,
));
if (!verify_security_token($vbulletin->GPC['markreadhash'], $vbulletin->userinfo['securitytoken_raw']))
{
eval(standard_error(fetch_error('security_token_invalid', $vbulletin->options['contactuslink'])));
}

So it is something with the CSRF protection (this issues started with vB 3.8.5 when they put CSFR protection on the Mark All Read function.)