<p>The POST request to the request_token_url contains a Authorization Header like this:<br>
   oauth_callback="http%3A%2F%2Fwheelmap.dev%2Fusers%2Fauth%2Fosm%2Fcallback",oauth_consumer_key="1uMcFjkJIlpFRHx7Y05Q",oauth_nonce="GY8HQaoFrdhV7UqpSMS3Sf28UvAgbmv3duZubMepZI",oauth_signature="lEBNlAfxw459O0KGfT5%2FmWOA61I%3D", oauth_signature_method="HMAC-SHA1",oauth_timestamp="1371148749", oauth_version="1.0"</p>

<p>This is done automatically by the OAuth gem.</p>

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