[APP][Pro] Dashboards

I did some testing with the background url in the dashboard settings and this is working fine if the image is somewhere accessible on the internet, but I’d rather control this myself.

I installed the Micro Web Server app on my Homey Pro
On the Micro Web Server I copied a custom background and this jpg file is accessible via my browser, but when I try to use this url in the dashboard settings it won’t apply the background.

Example url: http://homey-guid********:5080/Background1.jpg

Is the dashboard app somehow unable to resolve local hosted jpg files?