Traefik proxy - Unsolicited response received on idle HTTP channel starting with "0\r\n\r\n"; err=<nil>

[officiallymarky]

receiving errors:
2023/11/14 08:33:19 transport.go:2273: Unsolicited response received on idle HTTP channel starting with "0\r\n\r\n"; err=
2023/11/14 08:34:28 transport.go:2273: Unsolicited response received on idle HTTP channel starting with "0\r\n\r\n"; err=
2023/11/14 08:34:28 transport.go:2273: Unsolicited response received on idle HTTP channel starting with "0\r\n\r\n"; err=
2023/11/14 08:34:29 transport.go:2273: Unsolicited response received on idle HTTP channel starting with "0\r\n\r\n"; err=
2023/11/14 08:34:29 transport.go:2273: Unsolicited response received on idle HTTP channel starting with "0\r\n\r\n"; err=
2023/11/14 08:34:29 transport.go:2273: Unsolicited response received on idle HTTP channel starting with "0\r\n\r\n"; err=
2023/11/14 08:34:29 transport.go:2273: Unsolicited response received on idle HTTP channel starting with "0\r\n\r\n"; err=

Version
v0.45.7.3

To Reproduce

Steps to reproduce the behavior:

1. Create SSL /w Traefik
2. View any page on Change Detection
3. Watch Traefik logs

Expected behavior
No errors

Desktop (please complete the following information):
Ubuntu Server & Desktop
Docker Compose

[dgtlmoon]

Hey, I have no idea what the goal of that watch is, can you give some information about what it is you're trying to achieve exactly?

[officiallymarky]

Hey, I have no idea what the goal of that watch is, can you give some information about what it is you're trying to achieve exactly?

This is bare bone install, no watches. I just fire up docker compose, then have traefik hand it an ssl. Any page I visit, I get three copies of that error on the traefik docker container. In fact, I deleted the two default watches as well.

[dgtlmoon]

I still have zero idea what you're talking about, why do you use traefik exactly? try to give some background/context

[dgtlmoon]

"hand it an ssl." what does this mean?

[officiallymarky]

"hand it an ssl." what does this mean?

Traefik acts as reverse proxy which manages creating let's encrypt SSL certificates so I can access changedetect at https://changedetect.mydomain.com. I use this for all my docker containers, and only Change Detect is complaining on every page view.

[dgtlmoon]

I renamed the issue and moved it to discussions, and then renamed the title of the post to give a bit more info to someone who might be reading it

[dgtlmoon]

@officiallymarky 2 seconds of google gave me this #400 (comment)

[officiallymarky]

Everything I have seen is this is a result of the backend server provided invalid response, and the error is just the proxy (traefik/caddy) reporting it. No other container does it and they are all sitting behind Traefik w/ SSL.

[dgtlmoon]

@officiallymarky does this help? https://github.com/dgtlmoon/changedetection.io/wiki/Running-changedetection.io-behind-a-reverse-proxy#caddy-reverse-proxy

[dgtlmoon]

Do a tcpdump between them and see what it is, it might be printing out some error page instead of plain HTTP or something

[officiallymarky]

USE_X_SETTINGS=1 didn't seem to help any

[dgtlmoon]

So it looks like it's an upstream bug - follow more here #2053