Redirect non-secure requests on Heroku

ForceSecure.php

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;

class ForceSecure
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        $request->setTrustedProxies([
            '127.0.0.1',
            $request->server->get('REMOTE_ADDR'),
        ]);

        $request->setTrustedHeaderName(Request::HEADER_FORWARDED, null);
        $request->setTrustedHeaderName(Request::HEADER_CLIENT_IP, 'X_FORWARDED_FOR');
        $request->setTrustedHeaderName(Request::HEADER_CLIENT_HOST, null);
        $request->setTrustedHeaderName(Request::HEADER_CLIENT_PROTO, 'X_FORWARDED_PROTO');
        $request->setTrustedHeaderName(Request::HEADER_CLIENT_PORT, 'X_FORWARDED_PORT');

        if (! app()->isLocal() && ! $request->secure()) {
            return redirect()->secure($request->path(), 301);
        }

        return $next($request);
    }
}