title: PayPal Return URL not working
body: <p>I have a form like these:</p>
  
  <pre><code>&lt;input type='hidden' name='cmd' value='_xclick'&gt;
  &lt;input type='hidden' name='business' value='co_1331738237_per@gmail.com'&gt;
  &lt;input type='hidden' name='item_name' value='Nueva compra en mi web'&gt;
  &lt;input type='hidden' name='amount' value='10.15'&gt;
  &lt;input type='hidden' name='page_style' value='primary'&gt;
  &lt;input type='hidden' name='no_shipping' value='1'&gt;
  &lt;input type='hidden' name='return' value='http://someurl.com/reserva-realizada/'&gt;
  &lt;input type='hidden' name='rm' value='2'&gt;
  &lt;input type='hidden' name='cancel_return' value='http://someurl.com/reserva-cancelada/'&gt;
  &lt;input type='hidden' name='no_note' value='0'&gt;
  &lt;input type='hidden' name='first_name' value='NOMBRE'&gt;
  &lt;input type='hidden' name='last_name' value='APELLIDOS'&gt;
  &lt;input type='hidden' name='night_phone_b' value='TELÉFONO'&gt;
  &lt;input type='hidden' name='custom' value='Nota'&gt;
  &lt;input type='hidden' name='lc' value='es'&gt;
  &lt;input type="hidden" name="currency_code" value="EUR"&gt; 
  &lt;input type='hidden' name='country' value='ES'&gt;
  </code></pre>
  
  <p>The problem is that after pay i need to sing up the user in my site and the return it's not working. When I tried to pay something in the sandbox of paypal it doesn't return…</p>
  
  <p>Any idea?</p>