👀 Views: 42 💬 Answers: 1 📅 Created: 2025-06-06

php slim middleware cors PHP

I'm currently working on a Slim Framework (3.12) application and implemented a custom middleware to handle CORS headers. However, it seems that the middleware is not executing as expected, and I need to figure out why. I registered the middleware using the following code: ```php $app->add(new CorsMiddleware()); ``` The `CorsMiddleware` class looks like this: ```php class CorsMiddleware { public function __invoke($request, $response, $next) { $response = $next($request, $response); $response = $response->withHeader('Access-Control-Allow-Origin', '*') ->withHeader('Access-Control-Allow-Headers', 'X-Requested-With, Content-Type, Accept, Origin, Authorization') ->withHeader('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS'); return $response; } } ``` However, when I make a request to one of my routes, the CORS headers are not present in the response. I confirmed that the middleware is correctly registered by placing a simple `error_log()` statement inside the `__invoke` method, but it doesn't log anything. I also checked that the routes are defined after the middleware is registered. Here’s how I defined one of my routes: ```php $app->get('/api/items', function ($request, $response, $args) { // Retrieve items from database return $response->withJson($items); }); ``` I’ve also verified that other middlewares (like `HttpBasicAuthentication`) work fine, so I’m puzzled why this custom middleware isn’t being triggered. I tried moving the middleware registration to different places in the application setup, but that hasn't resolved the scenario. Any suggestions on what could be going wrong or how to debug this scenario further?