Invidious Onion "requested format not available"

[Snake883]

Checklist

• I'm reporting a broken site support
• I've verified that I'm running youtube-dl version 2021.01.16
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar issues including closed ones

Verbose log

$ youtube-dl -sv -f "best[ext=mp4][height<=480]" http://invidious.3o7z6yfxhbw7n3za4rss6l434kmv55cgw2vuziwuigpwegswvwzqipyd.onion/watch?v=C0DPdy98e4c --proxy socks5://127.0.0.1:9150
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-sv', u'-f', u'best[ext=mp4][height<=480]', u'http://invidious.3o7z6yfxhbw7n3za4rss6l434kmv55cgw2vuziwuigpwegswvwzqipyd.onion/watch?v=C0DPdy98e4c', u'--proxy', u'socks5://127.0.0.1:9150']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2021.01.16
[debug] Python version 2.7.18 (CPython) - Linux-5.4.0-62-generic-x86_64-with-LinuxMint-20.1-ulyssa
[debug] exe versions: none
[debug] Proxy map: {u'http': u'socks5://127.0.0.1:9150', u'https': u'socks5://127.0.0.1:9150'}
[generic] watch?v=C0DPdy98e4c: Requesting header
WARNING: Falling back on generic information extractor.
[generic] watch?v=C0DPdy98e4c: Downloading webpage
[generic] watch?v=C0DPdy98e4c: Extracting information
[download] Downloading playlist: TEST VIDEO
[generic] playlist TEST VIDEO: Collected 1 video ids (downloading 1 of them)
[download] Downloading video 1 of 1
ERROR: requested format not available
Traceback (most recent call last):
File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 805, in wrapper
return func(self, *args, **kwargs)
File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1067, in __process_iterable_entry
entry, download=download, extra_info=extra_info)
File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 871, in process_ie_result
return self.process_video_result(ie_result, download=download)
File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1670, in process_video_result
expected=True)
ExtractorError: requested format not available

Description

Works:

$ youtube-dl -sv -f "best[ext=mp4][height<=480]" https://invidiou.site/watch?v=C0DPdy98e4c

Not Working:

$ youtube-dl -sv -f "best[ext=mp4][height<=480]" http://invidious.3o7z6yfxhbw7n3za4rss6l434kmv55cgw2vuziwuigpwegswvwzqipyd.onion/watch?v=C0DPdy98e4c --proxy socks5://127.0.0.1:9150

Other Information

There seems to be a problem extracting format information when using the Invidious onion site.

Working

$ youtube-dl -F https://invidiou.site/watch?v=C0DPdy98e4c
[youtube] C0DPdy98e4c: Downloading webpage
[info] Available formats for C0DPdy98e4c:
format code extension resolution note
249 webm audio only tiny 25k , opus @ 50k (48000Hz), 43.28KiB
250 webm audio only tiny 38k , opus @ 70k (48000Hz), 59.42KiB
251 webm audio only tiny 54k , opus @160k (48000Hz), 85.16KiB
140 m4a audio only tiny 127k , m4a_dash container, mp4a.40.2@128k (44100Hz), 274.02KiB
278 webm 192x144 144p 27k , webm container, vp9, 13fps, video only, 52.21KiB
160 mp4 192x144 144p 37k , avc1.4d400b, 25fps, video only, 62.40KiB
394 mp4 192x144 144p 47k , av01.0.00M.08, 25fps, video only, 75.02KiB
395 mp4 320x240 240p 51k , av01.0.00M.08, 25fps, video only, 85.73KiB
133 mp4 320x240 240p 51k , avc1.4d400d, 25fps, video only, 85.11KiB
242 webm 320x240 240p 69k , vp9, 25fps, video only, 131.47KiB
396 mp4 480x360 360p 81k , av01.0.01M.08, 25fps, video only, 141.76KiB
134 mp4 480x360 360p 84k , avc1.4d4015, 25fps, video only, 138.98KiB
243 webm 480x360 360p 106k , vp9, 25fps, video only, 200.87KiB
135 mp4 640x480 480p 121k , avc1.4d401e, 25fps, video only, 197.65KiB
397 mp4 640x480 480p 123k , av01.0.04M.08, 25fps, video only, 212.40KiB
244 webm 640x480 480p 153k , vp9, 25fps, video only, 287.41KiB
18 mp4 480x360 360p 267k , avc1.42001E, 25fps, mp4a.40.2@ 96k (44100Hz), 540.04KiB (best)

Not Working

$ youtube-dl -F http://invidious.3o7z6yfxhbw7n3za4rss6l434kmv55cgw2vuziwuigpwegswvwzqipyd.onion/watch?v=C0DPdy98e4c --proxy socks5://127.0.0.1:9150
[generic] watch?v=C0DPdy98e4c: Requesting header
WARNING: Falling back on generic information extractor.
[generic] watch?v=C0DPdy98e4c: Downloading webpage
[generic] watch?v=C0DPdy98e4c: Extracting information
[download] Downloading playlist: TEST VIDEO
[generic] playlist TEST VIDEO: Collected 1 video ids (downloading 1 of them)
[download] Downloading video 1 of 1
[info] Available formats for watch?v=C0DPdy98e4c:
format code extension resolution note
medium mp4 unknown mp4a.40.2
[download] Finished downloading playlist: TEST VIDEO