[download fail]: YouTube

[itzwaris]

Website name: YouTube

OS: Linux

Video URL: https://youtu.be/qYTC9G7yHmY

Stack overflow

Downloading [https://youtu.be/qYTC9G7yHmY](https://youtu.be/qYTC9G7yHmY) error:

cipher not found

github.com/iawia002/lux/extractors/youtube.(*extractor).genPartByFormat
github.com/iawia002/lux/extractors/youtube/youtube.go:143
github.com/iawia002/lux/extractors/youtube.(*extractor).youtubeDownload
github.com/iawia002/lux/extractors/youtube/youtube.go:94
github.com/iawia002/lux/extractors/youtube.(*extractor).Extract
github.com/iawia002/lux/extractors/youtube/youtube.go:49

Screenshots

none

Additional context

• Lux version: 0.24.1
• Go version: 1.24+
• This happens consistently for normal youtube watch URLs and youtu.be short links
• The issue appears to be related to a recent youtube player cipher/signature change
• Other tools such as yt-dlp currently work with the same url
• This blocks using lux as a YouTube resolver backend