title: Cannot retrieve post data because of 301 moved permanently error
body: <p>Response from the API is lost because of 301 moved permanently error.</p>
  
  <pre><code>&lt;form action="https://test.sagepay.com/mpitools/accesscontroler?action=pareq" method="post"&gt;
    &lt;input type="hidden" name="MD"&gt;
    &lt;input type="hidden" name="PaReq"&gt;
    &lt;input type="hidden" name="https://examplewebsite.com/en/applicant/terms-page"&gt;
  &lt;/form&gt;
  
  &lt;script&gt;
  document.forms[0].submit();
  &lt;/script&gt;
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/7azks.png" rel="nofollow noreferrer">Network console screenshot</a></p>