Issue #3086408 by Krzysztof Domański, mglaman, el7cosmos: Error code should be...

Issue #3086408 by Krzysztof Domański, mglaman, el7cosmos: Error code should be string in HttpExceptionNormalizer

core/modules/jsonapi/src/Normalizer/HttpExceptionNormalizer.php

@@ -87,7 +87,7 @@ protected function buildErrorObjects(HttpException $exception) {
     // Exceptions thrown without an explicitly defined code get assigned zero by
     // default. Since this is no helpful information, omit it.
     if ($exception->getCode() !== 0) {
-      $error['code'] = $exception->getCode();
+      $error['code'] = (string) $exception->getCode();
     }
     if ($this->currentUser->hasPermission('access site reports')) {
       // The following information may contain sensitive information. Only show

core/modules/jsonapi/tests/src/Unit/Normalizer/HttpExceptionNormalizerTest.php

@@ -36,8 +36,8 @@ public function testNormalize() {
     $error = $normalized[0];
     $this->assertNotEmpty($error['meta']);
     $this->assertNotEmpty($error['source']);
-    $this->assertEquals(13, $error['code']);
-    $this->assertEquals(403, $error['status']);
+    $this->assertSame('13', $error['code']);
+    $this->assertSame('403', $error['status']);
     $this->assertEquals('Forbidden', $error['title']);
     $this->assertEquals('lorem', $error['detail']);
     $this->assertArrayHasKey('trace', $error['meta']);