ACP2E-3343: Critical 500 Error: Magento\Framework\Webapi\Exception Related to Accept HTTP Header

Author: dhorytskyi

dev/tests/integration/testsuite/Magento/Framework/App/FrontControllerTest.php

@@ -18,6 +18,7 @@
  * @SuppressWarnings(PHPMD.UnusedFormalParameter)
  * @SuppressWarnings(PHPMD.CouplingBetweenObjects)
  * @magentoAppArea frontend
+ * @magentoAppIsolation enabled
  */
 class FrontControllerTest extends TestCase
 {
@@ -118,4 +119,24 @@ public function testInvalidRequest()
             $this->_model->dispatch($request)
         );
     }
+
+    public function testDispatchWithAcceptHeader(): void
+    {
+        if (!Bootstrap::canTestHeaders()) {
+            $this->markTestSkipped('Can\'t test dispatch process without sending headers');
+        }
+
+        $this->fakeRequestValidator->valid = true;
+        $_SERVER['HTTP_HOST'] = 'localhost';
+        $this->_objectManager->get(State::class)->setAreaCode('frontend');
+        $request = $this->_objectManager->get(HttpRequest::class);
+        $request->setRequestUri('/checkout');
+        $headers = $request->getHeaders();
+        $headers->addHeaderLine('Accept', 'text/html');
+        $request->setHeaders($headers);
+        $this->assertInstanceOf(
+            ResultInterface::class,
+            $this->_model->dispatch($request)
+        );
+    }
 }