Using HTTPS on your site

Symptom:
When visiting your site with HTTPS, images within admin panel fail to load.

Cause:
Images urls are generated by admin panel using

Storage::disk(config('admin.storage.disk'))->url($file);

If voyager.storage.disk is set to public, and the public disk is the default from Laravel, then the url property in the disk configuration is set to

'url' => env('APP_URL').'/storage',

which uses the non-HTTPS APP_URL value to build an absolute url to the image.

Solution:
If you remove env('APP_URL'). from the public disk configuration, then it will render a domain-relative url, which will always use the current domain and protocol.

As an aside, if you need a fully-qualified URL, you could wrap the call to Admin::image('...') with asset(), so it would be

asset(Admin::image('...'))

This will return the current protocol, domain, and correct path to that image.