Tab Page Error: The requested method GET is not allowed

I have just set up a custom tab on my page for the first time. I have thoroughly followed the setup guide and seem to have everything on the Facebook side setup correctly.

However when I view my page it throws the following error:

Method Not Allowed The requested method GET is not allowed for the URL /Facebook/index.html. Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request. Apache/1.3.41 Server at feebnaturals.com.au Port 80

I believe it may be some kind of Apache server config issue, however I'm not that Apache savvy, so not sure where to start.

I had the same problem, but instead of GET, it was POST method which was not allowed. This is a setting on your server. Not server savvy myself, but it seems that my provider didn't allow this method on html-page, but makes no problem on doing the same for php-pages. So all I did was rename my page from .html to .php, updated the app settings in facebook and all works fine now.

This is definitely an error on your side, check your server logs and see what they say - it looks like you've configured the page to only work via a POST request and it's being requested in a GET request