yt-dlp: [youtube] YouTube said: ERROR - Precondition check failed - HTTP Error 400: Bad Request

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Checklist

I’m reporting that yt-dlp is broken on a supported site
I’ve verified that I have updated yt-dlp to nightly or master (update instructions)
I’ve checked that all provided URLs are playable in a browser with the same IP and same login details
I’ve checked that all URLs and arguments with special characters are properly quoted or escaped
I’ve searched known issues and the bugtracker for similar issues including closed ones. DO NOT post duplicates
I’ve read the guidelines for opening an issue
I’ve read about sharing account credentials and I’m willing to share it if required

Region

Global

Provide a description that is worded well enough to be understood

It started from several days ago, when “–cookies-from-browser chrome” were given to yt-dlp, some warnings will occur. But it can still finish downloading, though I didn’t test for links which need a premium account to watch. (I don’t have a premium account. I use a bat file which will automatically add these parameters because I’m not only using this tool for YouTube.)

The following output is with -F parameter to list out all available formats, but designated format (like -f 137+140/313+251) will lead to the same warning output.

~~But if no cookies parameters are given, the warnings will not occur.~~

Provide verbose output that clearly demonstrates the problem

Run your yt-dlp command with -vU flag added (yt-dlp -vU <your command line>)
If using API, add 'verbose': True to YoutubeDL params instead
Copy the WHOLE output (starting with [debug] Command-line config) and insert it below

Complete Verbose Output

yt-dlp --cookies-from-browser chrome -F "https://www.youtube.com/watch?v=UK4BVBhZRm8" --verbose
[debug] Command-line config: ['--cookies-from-browser', 'chrome', '-F', 'https://www.youtube.com/watch?v=UK4BVBhZRm8', '--verbose']
Extracting cookies from chrome
[debug] Extracting cookies from: "C:\Users\[Username]\AppData\Local\Google\Chrome\User Data\Default\Network\Cookies"
[debug] Found local state file at "C:\Users\[Username]\AppData\Local\Google\Chrome\User Data\Local State"
Extracted 362 cookies from chrome
[debug] cookie version breakdown: {'v10': 362, 'other': 0, 'unencrypted': 0}
[debug] Encodings: locale cp936, fs utf-8, pref cp936, out utf-8, error utf-8, screen utf-8
[debug] yt-dlp version stable@2023.12.30 from yt-dlp/yt-dlp [f10589e34] (win_exe)
[debug] Python 3.8.10 (CPython AMD64 64bit) - Windows-10-10.0.19045-SP0 (OpenSSL 1.1.1k  25 Mar 2021)
[debug] exe versions: ffmpeg 2024-02-15-git-a2cfd6062c-full_build-www.gyan.dev (setts), ffprobe 2024-02-15-git-a2cfd6062c-full_build-www.gyan.dev, phantomjs 2.1.1
[debug] Optional libraries: Cryptodome-3.19.1, brotli-1.1.0, certifi-2023.11.17, mutagen-1.47.0, requests-2.31.0, sqlite3-3.35.5, urllib3-2.1.0, websockets-12.0
[debug] Request Handlers: urllib, requests, websockets
[debug] Loaded 1798 extractors
[youtube] Extracting URL: https://www.youtube.com/watch?v=UK4BVBhZRm8
[youtube] UK4BVBhZRm8: Downloading webpage
[debug] [youtube] Extracted SAPISID cookie
[youtube] UK4BVBhZRm8: Downloading ios player API JSON
[youtube] UK4BVBhZRm8: Downloading android player API JSON
WARNING: [youtube] YouTube said: ERROR - Precondition check failed.
WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (1/3)...
[youtube] UK4BVBhZRm8: Downloading android player API JSON
WARNING: [youtube] YouTube said: ERROR - Precondition check failed.
WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (2/3)...
[youtube] UK4BVBhZRm8: Downloading android player API JSON
WARNING: [youtube] YouTube said: ERROR - Precondition check failed.
WARNING: [youtube] HTTP Error 400: Bad Request. Retrying (3/3)...
[youtube] UK4BVBhZRm8: Downloading android player API JSON
WARNING: [youtube] YouTube said: ERROR - Precondition check failed.
WARNING: [youtube] Unable to download API page: HTTP Error 400: Bad Request (caused by <HTTPError 400: Bad Request>); please report this issue on  https://github.com/yt-dlp/yt-dlp/issues?q= , filling out the appropriate issue template. Confirm you are on the latest version using  yt-dlp -U
[debug] Loading youtube-nsig.95cde7ed from cache
[debug] [youtube] Decrypted nsig 5bTotIK1gFjNgIBv => FtvvoGjPVzKbSA
[debug] Loading youtube-nsig.95cde7ed from cache
[debug] [youtube] Decrypted nsig bBGZL444AU1fsaOX => o-GMGuNTrOkj-g
[youtube] UK4BVBhZRm8: Downloading m3u8 information
[debug] Sort order given by extractor: quality, res, fps, hdr:12, source, vcodec:vp9.2, channels, acodec, lang, proto
[debug] Formats sorted by: hasvid, ie_pref, quality, res, fps, hdr:12(7), source, vcodec:vp9.2(10), channels, acodec, lang, proto, size, br, asr, vext, aext, hasaud, id
[info] Available formats for UK4BVBhZRm8:
ID  EXT   RESOLUTION FPS CH │   FILESIZE    TBR PROTO │ VCODEC           VBR ACODEC      ABR ASR MORE INFO
────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────

sb3 mhtml 48x27        1    │                   mhtml │ images                                   storyboard
sb2 mhtml 85x45        1    │                   mhtml │ images                                   storyboard
sb1 mhtml 170x90       1    │                   mhtml │ images                                   storyboard
sb0 mhtml 341x180      1    │                   mhtml │ images                                   storyboard
233 mp4   audio only        │                   m3u8  │ audio only           unknown             Default, IOS
234 mp4   audio only        │                   m3u8  │ audio only           unknown             Default, IOS
139 m4a   audio only      2 │    1.02MiB    49k https │ audio only           mp4a.40.5   49k 22k low, IOS, m4a_dash
249 webm  audio only      2 │    1.02MiB    49k https │ audio only           opus        49k 48k low, WEB, webm_dash
250 webm  audio only      2 │    1.25MiB    60k https │ audio only           opus        60k 48k low, WEB, webm_dash
140 m4a   audio only      2 │    2.71MiB   130k https │ audio only           mp4a.40.2  130k 44k medium, IOS, m4a_dash
251 webm  audio only      2 │    2.35MiB   112k https │ audio only           opus       112k 48k medium, WEB, webm_dash
602 mp4   256x136     15    │ ~  2.15MiB   100k m3u8  │ vp09.00.10.08   100k video only          IOS
269 mp4   256x136     30    │ ~  4.13MiB   192k m3u8  │ avc1.4D400C     192k video only          IOS
160 mp4   256x136     30    │    2.15MiB   103k https │ avc1.4D400C     103k video only          144p, IOS, mp4_dash
603 mp4   256x136     30    │ ~  3.92MiB   182k m3u8  │ vp09.00.11.08   182k video only          IOS
278 webm  256x136     30    │    1.91MiB    91k https │ vp09.00.11.08    91k video only          144p, IOS, webm_dash
229 mp4   426x224     30    │ ~  7.15MiB   333k m3u8  │ avc1.4D400D     333k video only          IOS
133 mp4   426x224     30    │    4.43MiB   212k https │ avc1.4D400D     212k video only          240p, IOS, mp4_dash
604 mp4   426x224     30    │ ~  7.08MiB   330k m3u8  │ vp09.00.20.08   330k video only          IOS
242 webm  426x224     30    │    3.77MiB   180k https │ vp09.00.20.08   180k video only          240p, IOS, webm_dash
230 mp4   640x338     30    │ ~ 17.52MiB   815k m3u8  │ avc1.4D401E     815k video only          IOS
134 mp4   640x338     30    │    8.96MiB   428k https │ avc1.4D401E     428k video only          360p, IOS, mp4_dash
18  mp4   640x338     30  2 │   10.94MiB   523k https │ avc1.42001E          mp4a.40.2       44k 360p, WEB
605 mp4   640x338     30    │ ~ 12.50MiB   582k m3u8  │ vp09.00.21.08   582k video only          IOS
243 webm  640x338     30    │    5.99MiB   286k https │ vp09.00.21.08   286k video only          360p, IOS, webm_dash
231 mp4   854x450     30    │ ~ 29.91MiB  1392k m3u8  │ avc1.4D401F    1392k video only          IOS
135 mp4   854x450     30    │   16.81MiB   804k https │ avc1.4D401F     804k video only          480p, IOS, mp4_dash
606 mp4   854x450     30    │ ~ 20.42MiB   950k m3u8  │ vp09.00.30.08   950k video only          IOS
244 webm  854x450     30    │   10.51MiB   503k https │ vp09.00.30.08   503k video only          480p, IOS, webm_dash
22  mp4   1280x676    30  2 │ ≈ 35.73MiB  1663k https │ avc1.64001F          mp4a.40.2       44k 720p, WEB
136 mp4   1280x676    30    │   32.10MiB  1535k https │ avc1.64001f    1535k video only          720p, WEB, mp4_dash
247 webm  1280x676    30    │   18.09MiB   865k https │ vp9             865k video only          720p, WEB, webm_dash
311 mp4   1280x676    60    │ ~ 88.97MiB  4141k m3u8  │ avc1.640020    4141k video only          IOS
298 mp4   1280x676    60    │   46.17MiB  2207k https │ avc1.640020    2207k video only          720p60, IOS, mp4_dash
612 mp4   1280x676    60    │ ~ 61.69MiB  2871k m3u8  │ vp09.00.40.08  2871k video only          IOS
302 webm  1280x676    60    │   36.10MiB  1726k https │ vp09.00.40.08  1726k video only          720p60, IOS, webm_dash
312 mp4   1920x1012   60    │ ~136.17MiB  6338k m3u8  │ avc1.64002A    6338k video only          IOS
299 mp4   1920x1012   60    │   79.52MiB  3802k https │ avc1.64002A    3802k video only          1080p60, IOS, mp4_dash
617 mp4   1920x1012   60    │ ~100.45MiB  4675k m3u8  │ vp09.00.41.08  4675k video only          IOS
303 webm  1920x1012   60    │   66.69MiB  3189k https │ vp09.00.41.08  3189k video only          1080p60, IOS, webm_dash

623 mp4   2560x1350   60    │ ~231.59MiB 10779k m3u8  │ vp09.00.50.08 10779k video only          IOS
308 webm  2560x1350   60    │  173.84MiB  8311k https │ vp09.00.50.08  8311k video only          1440p60, IOS, webm_dash

628 mp4   3840x2026   60    │ ~443.94MiB 20663k m3u8  │ vp09.00.51.08 20663k video only          IOS
315 webm  3840x2026   60    │  331.78MiB 15862k https │ vp09.00.51.08 15862k video only          2160p60, IOS, webm_dash

About this issue

Original URL
State: closed
Created 4 months ago
Reactions: 5
Comments: 30 (13 by maintainers)

Commits related to this issue

[ie/youtube] Bump Android and iOS client versions (#9317) Closes #9316 Authored by: bashonly — committed to norwd/yt-dlp by bashonly 4 months ago
Update app.py Changing yt-dlp to nightly version due to issue [9316](https://github.com/yt-dlp/yt-dlp/issues/9316). Big updates are coming. HLS streaming is done (not implemented) and an admin das... — committed to samstarnes/vdm by samstarnes 4 months ago

Most upvoted comments

UPDATE TO 2024.03.10

if you are using the exe/zip:

yt-dlp -U

or if you installed with pip:

python3 -m pip install -U yt-dlp

+21

bashonly on Mar 11, 2024

@DCxDESIGN would you be able to test a patch?

I’ve created a pre-release with builds available: https://github.com/bashonly/yt-dlp/releases/tag/bump

To update to it, you can just run:

yt-dlp --update-to bashonly/yt-dlp@bump

bashonly on Mar 9, 2024

The nighlty version fixed it for me. Thanks!

Exoticinurs on Mar 9, 2024

Tested the patch on my MacOS machine as well and it’s working for me. Thanks for the update and the link to how to install the nightly builds with a pip install.

sizemo on Mar 7, 2024