Appending any path to any post URL results in a 200 response instead of 404.

Here is a link to a Google Document: https://docs.google.com/document/d/1WcIPGwCoJD42tw_7wD8p_alhYu53ITxK6o2cS64v11A/edit?usp=sharing) where we have listed all the details of our issue. It was easier doing it in a separate document.

Please let us know if you would like us to elaborate on anything further.