UBB.Developers Forums UBB.threads 6 Bug Reports 5.4.4: IE 6.0 cannot post

I have several complaints from the visitors who want to post a new topic:

Here is the error they are getting:

We cannot proceed.
We encountered a problem. The reason reported was:

The host you are trying to send the input from is not a valid host.

This error is only reported by users who is using IE 6.0 and Netscape 6 series.

Anyone has the same problem?

Sounds like they are possibly blocking the referer variable. This is a standard environment variable that get's passed from page to page. We use that variable to make sure a form isn't being submitted from an outside page. If a browser blocks it or manipulates it then you will get that error. I'm running IE6 here.

HI,

it realy is the browser.
i have the same problem with netscape 6.1
the HTTP_REFERER is not sent.
the only solution so far is disabling the check_referer in main.inc.php 359ff or rewriting it using a extremly short living sessionid (just an idea).
i would recommend disabling it for the HTTP_USER_AGENT Netscape 6/6.1 . but beware it is a possible risk, that you get spams (check for a valid sessionid can help a little)

Hubert