Docker: SSL Mixed Content Error, preventing Login via Client Application

[christianvw]

Hi,

when you login to your Nextcloud (Server 17.0) via the Client Application (2.6.0 Windows), you can not log in due to a mixed content error.

The Button for granting access links to a http url:

````

````

Due to this, every web browser prevents submitting this form. Is this my fault or is this a bug?

[christianvw]

I use Nginx as a Reverse Proxy Server which handles the SSL and redirects to Nextcloud, maybe that is a problem?

[sauroter]

You can force using https by adding.
'overwriteprotocol' => 'https',
to the config/config.php.

[christianvw]

I got the following command which has to be executed by the host:

docker exec --user www-data <<<containername>>> php occ config:system:set overwriteprotocol --value="https"

This does exactly what @sauroter described, thanks for that!