Show the error page in a pop up in prod environment too

src/Controller/ErrorHandling/FixedErrorController.php

@@ -0,0 +1,64 @@
+<?php
+/*
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ *  Copyright (C) 2019 - 2024 Jan Böhmer (https://github.com/jbtronics)
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as published
+ *  by the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+declare(strict_types=1);
+
+
+namespace App\Controller\ErrorHandling;
+
+use Symfony\Component\DependencyInjection\Attribute\AsDecorator;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpKernel\Controller\ErrorController;
+
+/**
+ * This class decorates the default error decorator and changes the content type of responses, if it went through a
+ * Turbo request.
+ * The problem is, that the default error controller returns in the format of the preferred content type of the request.
+ * This is turbo-stream. This causes Turbo to try to integrate it into the content frame and not trigger the ajax failed
+ * events to show the error in a popup like intended.
+ */
+#[AsDecorator("error_controller")]
+class FixedErrorController
+{
+    public function __construct(private readonly ErrorController $decorated)
+    {}
+
+    public function __invoke(\Throwable $exception): Response
+    {
+        $response = ($this->decorated)($exception);
+
+        //Check the content type of the response
+        $contentType = $response->headers->get('Content-Type');
+
+        //If the content type is turbo stream, change the content type to html
+        //This prevents Turbo to render the response as a turbo stream, and forces to render it in the popup
+        if ($contentType === 'text/vnd.turbo-stream.html') {
+            $response->headers->set('Content-Type', 'text/html');
+        }
+
+        return $response;
+    }
+
+    public function preview(Request $request, int $code): Response
+    {
+        return ($this->decorated)->preview($request, $code);
+    }
+}