POST Error Message

I'm sorry, but, no one else here is using the trailing dot. We're using a default vBulletin configuration, which does not include the trailing dot on the referrer authorization list. I really don't see a good reason for us to change the vBulletin settings because of an old style of entering website addresses, especially when the fix is for people to simply not add that dot in the first place. The RFC is very likely correct, of course, but, it's just not used anymore, certainly not by 99.9% of the web users. Besides that, you must really have to work at keeping that dot there since we use a rewrite rule that changes all incoming references to "www.wilderssecurity.com" - e.g. "wilderssecurity.com" and "wilderssecurity.com." get changed back to "www.wilderssecurity.com" with each click.

Anyway, the first thing I do when a problem like this is reported is go to the vBulletin.com website and see how they handle it. Like us, they have a rewrite rule that removes the trailing dot each click. So, I think we'll keep our current configuration.

Edit: Spot checking other websites: Google also rewrites the trailing dot off the address, as do Amazon and Facebook. Microsoft and Yahoo redirect you to an error page stating either invalid hostname or unsupported browser, if you use the trailing dot. My Opera browser treats all addresses with trailing dots as if I wanted to issue a search, not go to the actual website. So, Opera must be far away from following that RFC.