title: Codeigniter 3 csrf_exclude_uris a site and all its pages
body: <p>I want to CSRF protection be enabled for all URLs except my bank gateway.
  I tried so much to do it by regular expression but it doesn't work.
  My bank gateway URL is: <a href="https://sep.shaparak.ir/" rel="nofollow">https://sep.shaparak.ir/</a></p>
  
  <p>I want all subpages like these:</p>
  
  <pre><code>https://sep.shaparak.ir/PaymentError.aspx
  https://sep.shaparak.ir/Payment.aspx
  https://sep.shaparak.ir/Payments/InitPayment.asmx
  https://sep.shaparak.ir/payments/referencepayment.asmx
  </code></pre>
  
  <p>be excluded.</p>
  
  <p><strong>UPDATE:</strong></p>
  
  <p>The exclusion which we add to config['csrf_exclude_uris'] is name of our site controller/method not the site which submit something to us.
  In my case i should set "pay/verify" which is the method that verify user payment.</p>