Client interface - access the form URL through the Response message.

README.md

@@ -642,7 +642,7 @@ This provides the following data to feed into your client:
 
 ~~~php
 // The endpoint used to check the card details - GET or POST can be used.
-$endpoint = $request->getEndpoint();
+$endpoint = $response->getRedirectUrl();
 
 // The additional data that must be included with the card data.
 // This will be an array that can be JSON encoded for the client JavaScript to use:

src/Message/ShopClientAuthorizeResponse.php

@@ -40,12 +40,13 @@ public function isRedirect()
     }
 
     /**
-     * The URL the form will POST to.
+     * The URL the form data will POST to.
      */
     public function getRedirectUrl()
     {
-        return $this->postUrl;
+        return $this->request->getEndpoint();
     }
+
     public function getRedirectMethod()
     {
         return 'POST';

src/Message/ShopClientCardCheckResponse.php

@@ -9,7 +9,7 @@
 
 use Omnipay\Common\Message\RedirectResponseInterface;
 
-class ShopClientCardCheckResponse extends AbstractResponse
+class ShopClientCardCheckResponse extends AbstractResponse implements RedirectResponseInterface
 {
     public function isSuccessful()
     {
@@ -37,4 +37,21 @@ public function getRedirectData()
     {
         return $this->getData();
     }
+
+    /**
+     * Actually either POST or GET will work.
+     * This is over a secure connection, so GET won't be cached.
+     */
+    public function getRedirectMethod()
+    {
+        return 'POST';
+    }
+
+    /**
+     * The URL the form data will POST to.
+     */
+    public function getRedirectUrl()
+    {
+        return $this->request->getEndpoint();
+    }
 }