images2.php

images2.php

<?php

$app->get('/images'), function () use ($app) {
    $images = array('/images/1.jpg','/images/2.jpg','/images/3.jpg');
    $response = new JsonResponse($images);

    foreach($images as $image){
        $response->headers->set('link','<' . $image . '>; rel=preload; as=image',false);
    }
    
    return $response;
});