Laravel include css file from Mixed Content-CodePudding

I'm attempting to release a Laravel website on a server that is behind a load balancer. The domain SSL is hosted on the load balancer to enforce HTTPS. However, the server hosting the website does not have SSL. This causes a miss-match of HTTPS and HTTP when requesting assets.

When on the server, the site works perfectly. (localhost/CentralizedSettings/login) When requesting outside the server(https://blahSite.com/CentralizedSettings/login), css file is blacked and I get this error:

Error message:

Mixed Content: The page at 'https://blahSite.com/CentralizedSettings/login' was loaded over HTTPS, 
but requested an insecure stylesheet 'http://blahSite.com/CentralizedSettings/css/app.css'. 
This request has been blocked; the content must be served over HTTPS.

head.blade.php

<link href="{{ asset('css/app.css') }}" rel="stylesheet" type="text/css" />

.env file:

APP_ENV=local
APP_URL=https://blahSite.com/CentralizedSettings

Things I've tried:

- Adding the APP_URL to the .env file
- Changing the url to localhost
- Using asset(mix('css/app.css'))

CodePudding user response：

I think the solution is to force https in production :

<?php

use Illuminate\Support\ServiceProvider;
use Illuminate\Support\Facades\URL;

class AppServiceProvider extends ServiceProvider
{
    public function boot()
    {
        if($this->app->environment('production')) {
            URL::forceScheme('https');
        }
    }
}

another solution is to use ASSET_URL :

.env

ASSET_URL=https://example.com

.env.local

ASSET_URL=http://local.example.com