url_for in templates/main.html causes blocked loading mixed active content error

[kimgiftww]

The url_for in this template

https://github.com/justpy-org/justpy/blob/48c3e857461ebeeea05ac65ebe7f72ff49ae63af/justpy/templates/main.html

resulted in this blocked loading mixed active content error

https://developer.mozilla.org/en-US/docs/Web/Security/Mixed_content#warnings_in_firefox_web_console

which was caused by

encode/starlette-example#6

but seemed to be fixed in

encode/uvicorn#369

However, this is still not resolved in JustPy which make an advanced component like this one

https://justpy.io/tutorial/advanced_components/#fullcalendar-example

unable to be deployed in public server.

Is there a way to make url_for return an https instead of http?

[WolfgangFahl]

Could you please make a unit test for this to show what the problem exactly is and why we need to fix it in justpy and not upstream?

[WolfgangFahl]

see #685