Allow saving of a draw.io URL with a trailing slash in app settings

[level420]

My setup is current nextcloud php-fpm docker image 23.0.4 with draw.io app 1.0.2. run with docker-compose.
I'm using self hosted draw.io from https://github.com/jgraph/docker-drawio .

The special thing for my docker-compose stack is, that it is frontended via a apache httpd 2.4 docker container which uses mod_proxy to bring the URL https://mynextcloud.mydomain.tld/drawio/ to the frontend.

This works well when navigating to https://mynextcloud.mydomain.tld/drawio/ with the browser.

The problem is, that I'm not able to save that URL in the config page of the draw.io nextcloud app, as the trailing slash gets wiped out when saving the settings, which ends up in having https://mynextcloud.mydomain.tld/drawio there, which does not work.

Would it be possible to disable that cleanup behavious of the settings URL field?