Laravel imgproxy response middleware - see https://ac93.uk/articles/laravel-response-middleware-optimise-images-with-imgproxy for more context

ImgproxyCmsContent.php

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;
use Illuminate\Http\Response;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Str;
use Imgproxy\UrlBuilder;
use PHPHtmlParser\Dom;
use Throwable;

class ImgproxyCmsContent
{
    /**
     * @param Request $request
     * @param Closure $next
     * @return Response
     */
    public function handle($request, Closure $next)
    {
        if ($request->has('no_imgproxy')) {
            return $next($request);
        }

        /** @var Response $response */
        $response = $next($request);

        $dom = new Dom();
        try {
            $dom->loadStr($response->getContent());

            collect($dom->find('img'))
                ->reject(function (Dom\Node\HtmlNode $node) {
                    return Str::of($node->getAttribute('src'))
                        ->endsWith('.svg');
                })
                ->filter(function (Dom\Node\HtmlNode $node) {
                    $src = Str::of($node->getAttribute('src'));

                    return $src->startsWith(config('app.url'))
                        || $src->startsWith(Storage::disk('s3')->url('.'));
                })
                ->each(function (Dom\Node\HtmlNode $node) {
                    $node->setAttribute(
                        'src',
                        app(UrlBuilder::class)
                            ->build($node->getAttribute('src'), 896, 0)
                            ->useAdvancedMode()
                            ->toString()
                    );
                });

            return $response->setContent((string) $dom);
        } catch (Throwable $e) {
            return $response;
        }
    }
}