https://bodik24ua.github.io/spacedesk-HTML5-VIEWER-Offline/spacedesk.html
It’s resolve issue with security https.
Original doesn’t have https, and not secure for browser.
Works online & offline
Created from original - http://viewer.spacedesk.net/
A spacedesk client that can be used offline
spacedesk can change your smart device with a screen to a projector of a Windows Computer.
This project is an adaption of spacedesk-HTML5-VIEWER v0.9.9z.63 in order to use offline.
Remove google-analytics part
Localize all resources and rearrange them
Chrome
Double click spacedesk.html, then the same as the online version.