MC-16450: "Whoops, our bad" when copy and paste order information url on storefront

Author: SeruyV

app/code/Magento/Sales/Controller/Guest/View.php

@@ -6,6 +6,7 @@
 namespace Magento\Sales\Controller\Guest;
 
 use Magento\Framework\App\Action;
+use Magento\Framework\App\Action\HttpGetActionInterface;
 use Magento\Sales\Helper\Guest as GuestHelper;
 use Magento\Framework\View\Result\PageFactory;
 use Magento\Framework\Controller\ResultInterface;
@@ -14,7 +15,7 @@
 /**
  * Guest order view action.
  */
-class View extends Action\Action implements HttpPostActionInterface
+class View extends Action\Action implements HttpPostActionInterface, HttpGetActionInterface
 {
     /**
      * @var \Magento\Sales\Helper\Guest

dev/tests/integration/testsuite/Magento/Sales/Controller/Guest/ViewTest.php

@@ -16,13 +16,13 @@
 class ViewTest extends AbstractController
 {
     /**
-     * Check that controller applied only POST requests.
+     * Check that controller applied GET requests.
      */
-    public function testExecuteWithNonPostRequest()
+    public function testExecuteWithGetRequest()
     {
         $this->getRequest()->setMethod(Request::METHOD_GET);
         $this->dispatch('sales/guest/view/');
 
-        $this->assert404NotFound();
+        $this->assertRedirect($this->stringContains('sales/guest/form'));
     }
 }