Domain fronting requests don't work on some older Android versions

Tor Browser for Android supports old versions of Android (API21, i.e., Android Lollipop).

While 13.5a3 doesn't work there because I used some NIO API that requires API26+, I've opened a MR to fix this (tpo/applications/tor-browser!894 (merged)).

While checking if things worked, I noticed that domain fronting requests don't (I don't get the special countries list).

As written in that MR, I tried to enable logging (I added "-enableLogging", "-logLevel", "DEBUG", "-unsafeLogging" as arguments), but I could get only these messages:

2024/01/22 10:20:23 [NOTICE]: obfs4proxy-0.0.14 - launched
2024/01/22 10:20:23 [INFO]: libObfs4proxy.so - initializing client transport listeners
2024/01/22 10:20:23 [INFO]: meek_lite - registered listener: 127.0.0.1:55852
2024/01/22 10:20:23 [INFO]: libObfs4proxy.so - accepting connections
2024/01/22 10:20:23 [WARN]: meek_lite(bridges.torproject.org:443) - closed connection: readfrom tcp 127.0.0.1:55852->127.0.0.1:48836: io: read/write on closed pipe

I think there might be some problems with some HTTPS certificate (at least letsencrypt had this problem a few years ago, indeed cohosh mentioned snowflake#40087 (closed). Fastly isn't using letsencrypt, but maybe they have a similar problem).

I can open bridges.torproject.org both in TBA and in the system browser, but I can't open https://moat.torproject.org.global.prod.fastly.net/ because it has a wrong certificate.

I don't think I'm using the latest version of Lyrebird, because in the last one the log file should be called lyrebird.log (I submitted a patch for that, unless I missed the log filename), but I can try to build one from a nightly build.