The flow looks a bit like:
My Sandbox Server => Proxy Server => Twitter
I believe that the “secret” is tailored to my sandbox server, but by the time the OAuth request reaches twitter, the Proxy has changed enough headers to invalidate the signature assigned to the request. Can anyone offer pointers on how to handle this scenario?
I’ve tried using the PHP PECL OAuth extension and Matt Harris’s Twitter class (https://github.com/themattharris/tmhOAuth) with little success.
Thanks for any help.