CreateFormPostUri takes a Uri for the redirect value and if the value supplied does not have a file extension, e.g. http://example.com, Uri will quietly change it to http://example.com/. This easily leads to invalid signature exceptions because the redirect value in the form and hash are different.
Since nothing is gained by using a Uri as a parameter, I suggest switching to string when we revisit Object Storage.
CreateFormPostUritakes a Uri for the redirect value and if the value supplied does not have a file extension, e.g.http://example.com, Uri will quietly change it tohttp://example.com/. This easily leads toinvalid signatureexceptions because the redirect value in the form and hash are different.Since nothing is gained by using a Uri as a parameter, I suggest switching to string when we revisit Object Storage.