Rapid skips + lyrics prefetch fired the full lrclib cascade many times over,
so lrclib throttled the IP and requests timed out (canceled) on both web and
Android. Reduce the request volume:
- Web: de-dupe concurrent fetches per song (prefetch + tab-open now share one
cascade); bump the per-request timeout 6s → 8s.
- Android: per-song Mutex so prefetch + on-open load don't both run the cascade;
send a proper User-Agent (lrclib asks for one and treats it better); debounce
the prefetch (1.5s, cancelled on the next skip) instead of firing immediately
on every track change.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
HoneyandClaude Opus 4.8
63a7260c94