I downloaded 5.1 from download page and install it on my remote server. The initial page which check the environment was properly displayed and started checking however the last condition I couldn't passed which check whether or not there is ".php" extension.

Unfortunately, my remote server site contains ".php" in its domain name such as "mysubdomain.php.xdomain.jp" and I couldn't change the name because it's the policy of hosting service provider.

In such a case, I would like to pass the check but I don't know where I should see in the codes.

Does anybody know how to solve this problem?

Thanks and regards,