Swoft framework/community

 /**
 * Process an incoming server request.
 * @param ServerRequestInterface $request
 * @param RequestHandlerInterface $handler
 * @return ResponseInterface
 * @inheritdoc
 */
public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
{
    if ('OPTIONS' === $request->getMethod()) {
        $response = context()->getResponse();
        return $this->configResponse($response);
    }
    $response = $handler->handle($request);
    return $this->configResponse($response);
}

private function configResponse(ResponseInterface $response)
{
    return $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, PATCH, OPTIONS');
}