Dynazoom not working, might be related to https?

[bonswouar]

I'm trying to get dynazoom working on the app, but can't pinpoint the problem.
It works perfectly on html view (using https & basic auth).
But when using the app it seems there's wrong with the URL, apparently it's trying to use HTTP instead of HTTPS (and/or wrong domain) as the only logs I find in Apache are in my non-https "fallback" instead of the munin one (not sure why there is no hostname in the access log though):

1.2.3.4 - - [09/Sep/2022:14:32:07 +0200] "\x16\x03\x01\x02" 400 507 "-" "-"

And the error being:

[Fri Sep 09 14:32:07.860697 2022] [core:debug] [pid 478629] protocol.c(1447): [client 1.2.3.4:26873] AH00566: request failed: malformed request line

Environment

• Debian bullseye
• munin 2.0.67-3 and 2.0.69-1~bpo11+1
• Munin Android 4.2.0