cpa-api/app/middleware/HomeMiddleware.php

<?php

namespace app\middleware;

use Webman\Http\Request;
use Webman\Http\Response;
use Webman\MiddlewareInterface;

class HomeMiddleware implements MiddlewareInterface
{

    public function process(Request $request, callable $handler): Response
    {
        $response = $request->method() == 'OPTIONS' ? response('',204) : $handler($request);
        $response->withHeaders([
            'Access-Control-Allow-Credentials' => 'true',
            'Access-Control-Allow-Origin' => $request->header('origin', '*'),
            'Access-Control-Allow-Methods' => $request->header('access-control-request-method', '*'),
            'Access-Control-Allow-Headers' => $request->header('access-control-request-headers', '*'),
        ]);
        return $response;
    }

}