<form action="newEmptyPHP.php" method="post">
<input type="text" name="username" value="" />
<input type="text" name="twitter" value="" />
<input type="submit" value="Register" />
</form>

I have this exact form as the only thing on my website no other code.

If you put http:// into the first box it causes forbidden 403 error.

If you put http:// into the second it does nothing.

I would like people to be able to submit urls, but this is preventing it. The error occurs pre any code touching it. This is from a much large project I took it down to this amount. No one has been able to solve the issue.

Server is using modsecurity.

Thanks a lot.