Challenge bypass failing on all sites

[DoctorOctagonapus]

I've completed the following steps:

• Read Loop Warning on Readme
• Done the troubleshooting from Readme
• Checked if such issue already exists
• Checked other websites with Cloudflare Turnstile

OS

Docker on Proxmox (Debian)

Platform and model

PC

Architecture

x86_64

Website

Multiple tested, including idope.se, 1337x.to, and extratorrent.st

Describe the bug

All Cloudflare solve attempts are failing, testing multiple sites gives the same failure result shown in logs.

Currently using main channel as recommended in similar issues, but still having issues. Latest channel also not working.

Unsure when this started as I hadn't been actively using Prowlarr recently, but no failures are logged prior to today.

All sites I've tested load correctly in a web browser and captcha can be solved manually there.

Docker Compose config

image: ghcr.io/thephaseless/byparr:main
container_name: flaresolverr
shm_size: 2gb
environment:
  - LOG_LEVEL=${LOG_LEVEL:-info}
  - LOG_HTML=${LOG_HTML:-false}
  - TZ=Europe/London
ports:
  - "${PORT:-8191}:8191"
restart: unless-stopped

(I migrated over from flaresolverr when that stopped working; just changed the image path and added the shm_size value per your compose.yaml example)

Prowlarr Logs

Request for ExtraTorrent.st failed with exception 'HTTP request failed: [500:InternalServerError] [POST] at [http://[IP address]:8191/v1]'. Retrying in 2.1619298s.: HTTP request failed: [500:InternalServerError] [POST] at [http://[IP address]:8191/v1]

NzbDrone.Common.Http.HttpException: HTTP request failed: [500:InternalServerError] [POST] at [http://[IP address]:8191/v1]
   at NzbDrone.Common.Http.HttpClient.ExecuteAsync(HttpRequest request) in ./Prowlarr.Common/Http/HttpClient.cs:line 128
   at NzbDrone.Common.Http.HttpClient.Execute(HttpRequest request) in ./Prowlarr.Common/Http/HttpClient.cs:line 137
   at NzbDrone.Core.IndexerProxies.FlareSolverr.FlareSolverr.PostResponse(HttpResponse response) in ./Prowlarr.Core/IndexerProxies/FlareSolverr/FlareSolverr.cs:line 57
   at NzbDrone.Core.Indexers.IndexerHttpClient.<>c.<PostResponse>b__6_0(HttpResponse current, IIndexerProxy selectedProxy) in ./Prowlarr.Core/Indexers/IndexerHttpClient.cs:line 95
   at System.Linq.Enumerable.Aggregate[TSource,TAccumulate](IEnumerable`1 source, TAccumulate seed, Func`3 func)
   at NzbDrone.Core.Indexers.IndexerHttpClient.PostResponse(HttpResponse response, IList`1 selectedProxies) in ./Prowlarr.Core/Indexers/IndexerHttpClient.cs:line 95
   at NzbDrone.Core.Indexers.IndexerHttpClient.ExecuteProxiedAsync(HttpRequest request, ProviderDefinition definition) in ./Prowlarr.Core/Indexers/IndexerHttpClient.cs:line 44
   at NzbDrone.Core.Indexers.HttpIndexerBase`1.<>c.<<FetchIndexerResponse>b__57_0>d.MoveNext() in ./Prowlarr.Core/Indexers/HttpIndexerBase.cs:line 665
--- End of stack trace from previous location ---
   at Polly.ResiliencePipeline.<>c__9`2.<<ExecuteAsync>b__9_0>d.MoveNext()
{"detail":"Could not bypass challenge"}

Byparr Logs

flaresolverr  | INFO:    from 172.18.0.1 at 2025-06-11 15:28:53: https://extratorrent.st/
flaresolverr  | INFO:    Clicked captcha
flaresolverr  | INFO:    Failed https://extratorrent.st/ in 23.72s
flaresolverr  | INFO:    172.18.0.1:36512 - "POST /v1 HTTP/1.1" 500 Internal Server Error

[kkacim]

Exactly same behavior here, using it with Jackett

[Freeben666]

Same here

[ThePhaseless]

Sorry for such a delay, uni got in the way, I will check if this is something that could be solved, but please read the first important info block on the readme page about limitations of byparr. Tldr - It probably requires valid network traffic, but the definition of what such traffic is, that is unknown. Also they also could block Azure, aws etc. IPs. My recommendation is to use a proxy with residential ip if you want to get the best results

[Freeben666]

Sorry for such a delay, uni got in the way, I will check if this is something that could be solved, but please read the first important info block on the readme page about limitations of byparr. Tldr - It probably requires valid network traffic, but the definition of what such traffic is, that is unknown. Also they also could block Azure, aws etc. IPs. My recommendation is to use a proxy with residential ip if you want to get the best results

Hi,
Don't sweat about the delay, we all have lives ;-)

Here is my Byparr logs when doing a test for Yggtorrent in Jackett, relying on Byparr for Captcha:

INFO:     From: 172.19.0.3 at 2025-07-02 13:54:41: https://www.yggtorrent.top/engine/search?do=search&order=desc&sort=publish_date&category=all
INFO:     Clicked captcha
INFO:     Failed https://www.yggtorrent.top/engine/search?do=search&order=desc&sort=publish_date&category=all in 19.29s
INFO:     172.19.0.3:43058 - "POST /v1 HTTP/1.1" 500 Internal Server Error

This is from a residential connection. I have no problem accessing yggtorrent.top from another computer on the same LAN (so same public IP). It seems Byparr successfully loads the captcha, manges to click on it, but gets a HTTP 500 error code in return :-/

EDIT:
Also, I get this weird error message on container startup:

Using version 1.2.1
INFO:     Started server process [11]
INFO:     Waiting for application startup.
INFO:     Application startup complete.
INFO:     Uvicorn running on http://0.0.0.0:8191 (Press CTRL+C to quit)
/app/.venv/lib/python3.13/site-packages/pyautogui/_pyautogui_x11.py:284: SyntaxWarning: invalid escape sequence '\e'
  '\e': _display.keysym_to_keycode(Xlib.XK.string_to_keysym('Escape')),
INFO:     127.0.0.1:49996 - "GET /health HTTP/1.1" 200 OK

[adsmediatg]

Hi, I can help you solve the problem with captcha. Write to me in my Telegram @sakulchai_place or my mail adsmediatg@gmail.com

[alvarosantossyngenta]

This project doesn't directly solves captcha puzzles. However, it use SeleniumBase.

There is already a new SeleniumBase version 4.40.5 but the PR#212 with that update is failing its tests. Maybe Byparr must make some adjustments suggested in seleniumbase/SeleniumBase#3883

[dexter74]

On pi5:

Using version unknown
INFO:     Started server process [11]
INFO:     Waiting for application startup.
INFO:     Application startup complete.
INFO:     Uvicorn running on http://0.0.0.0:8191 (Press CTRL+C to quit)
INFO:     From: 172.17.0.1 at 2025-07-26 04:43:52: https://www.yggtorrent.top/engine/search?category=all&do=search&order=desc&sort=publish_date
/app/.venv/lib/python3.13/site-packages/pyautogui/_pyautogui_x11.py:284: SyntaxWarning: invalid escape sequence '\e'
  **'\e': _display.keysym_to_keycode(Xlib.XK.string_to_keysym('Escape'))**,

[Oz246]

Failed https://www.yggtorrent.top/auth/login in 5.80s
INFO: 172.19.0.2:42346 - "POST /v1 HTTP/1.1" 500 Internal Server Error
INFO: From: ... at 2025-07-28 07:48:07: https://www.yggtorrent.top/engine/search?category=all&do=search&order=desc&sort=publish_date
INFO: Clicked captcha

Prowlarr :

HTTP Error - Res: HTTP/1.1 [POST] http://**:8191/v1: 500.InternalServerError (39 bytes)
{"detail":"Could not bypass challenge"}

[alvarosantossyngenta]

I already fixed it in my own fork of the repo. I open #218 to merge changes

[Oz246]

Hello @alvarosantossyngenta Sorry, beginner's question, but how do you use your fork?

[alvarosantossyngenta]

Hello @alvarosantossyngenta Sorry, beginner's question, but how do you use your fork?

Use the package from my repo: https://github.com/datahub-local/Byparr/pkgs/container/byparr

[rubengarciam]

@alvarosantossyngenta fwiw I tried the latest from your fork and the Captcha failed in my tests, hcr.io/datahub-local/byparr:f20077a1499f307bb1d51066af1ef4d6f0200359-arm64 package.

byparr-1  | INFO:     Done https://prowlarr.servarr.com/v1/ping in 78.04s
byparr-1  | INFO:     172.25.0.1:37866 - "POST /v1 HTTP/1.1" 200 OK
byparr-1  | INFO:     Clicked captcha
byparr-1  | INFO:     Failed https://1337x.to/sort-search/@@@@/time/desc/1/ in 95.55s
byparr-1  | INFO:     172.25.0.1:37880 - "POST /v1 HTTP/1.1" 500 Internal Server Error
byparr-1  | INFO:     From: 172.25.0.1 at 2025-07-31 11:39:49: https://1337x.to/sort-search/@@@@/time/desc/1/
byparr-1  | INFO:     Clicked captcha
byparr-1  | INFO:     Failed https://1337x.to/sort-search/@@@@/time/desc/1/ in 32.16s
byparr-1  | INFO:     172.25.0.1:37880 - "POST /v1 HTTP/1.1" 500 Internal Server Error
byparr-1  | INFO:     From: 172.25.0.1 at 2025-07-31 11:40:25: https://1337x.to/sort-search/@@@@/time/desc/1/
byparr-1  | INFO:     Clicked captcha
byparr-1  | INFO:     Failed https://1337x.to/sort-search/@@@@/time/desc/1/ in 28.68s
byparr-1  | INFO:     172.25.0.1:37880 - "POST /v1 HTTP/1.1" 500 Internal Server Error

[alvarosantossyngenta]

SeleniunBase package needs chromium driver to be installed in the system.

Byparr/Dockerfile

Line 19 in 7bdb476

apt-get install -y --no-install-recommends --no-install-suggests xauth xvfb scrot curl chromium chromium-driver ca-certificates tini

Byparr/Dockerfile

Line 36 in 7bdb476

RUN cd .venv/lib/*/site-packages/seleniumbase/drivers && rm -f uc_driver && ln -s /usr/bin/chromedriver uc_driver

If you want to test it, you can:

• Install dependencies manually in your machine.
• Run tests with docker: docker buildx build . --target test
• Use devcontainer