🐛 Quick Tunnel Stopped Working: failed to unmarshall quick Tunnel

[bradenhs]

Describe the bug

Quick tunnels have stopped working for me all of the sudden. I get a "failed to unmarshall quick Tunnel: invalid character 'e' looking for beginning of value" message.

To Reproduce

❯ ./cloudflared-2023.5.0 tunnel --url=http://localhost:5848 
2023-05-19T20:42:42Z INF Thank you for trying Cloudflare Tunnel. Doing so, without a Cloudflare account, is a quick way to experiment and try it out. However, be aware that these account-less Tunnels have no uptime guarantee. If you intend to use Tunnels in production you should use a pre-created named tunnel by following: https://developers.cloudflare.com/cloudflare-one/connections/connect-apps
2023-05-19T20:42:42Z INF Requesting new quick Tunnel on trycloudflare.com...
failed to unmarshal quick Tunnel: invalid character 'e' looking for beginning of value

Tunnel ID : n/a
cloudflared config: none

Expected behavior

I'd expect a tunnel to be created instead of getting what looks like some sort of runtime exception.

Environment and versions

• OS: MacOS
• Architecture: ARM
• Version: 2023.5.0

Additional context

Been messing around with this extensively and it just stopped working out of the blue. Perhaps I hit some unspecified limit that the client doesn't have a nice error message for?

[benferns]

Just experiencing this as well on both 2023.4.1 and 2023.6.1 after hopping between a few projects using tunnels without a config file (though there is one in my usr dir)

OS: MacOS 13.3.1
Architecture: ARM
Version: 2023.4.1 and 2023.6.1

[JJMorty]

this is still an issue on 2023.10.0

OS Ubuntu 22.04
Architecture Intel
Version 2023.10.0

cloudflared is already the newest version (2023.10.0).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

cloudflared

2023-12-03T17:01:12Z INF Thank you for trying Cloudflare Tunnel. Doing so, without a Cloudflare account, is a quick way to experiment and try it out. However, be aware that these account-less Tunnels have no uptime guarantee. If you intend to use Tunnels in production you should use a pre-created named tunnel by following: https://developers.cloudflare.com/cloudflare-one/connections/connect-apps
2023-12-03T17:01:12Z INF Requesting new quick Tunnel on trycloudflare.com...
failed to unmarshal quick Tunnel: invalid character 'e' looking for beginning of value

[luckydevil13]

same here ime guarantee. If you intend to use Tunnels in production you should use a pre-created named tunnel by following: https://developers.cloudflare.com/cloudflare-one/connections/connect-apps
2024-01-04T07:49:56Z INF Requesting new quick Tunnel on trycloudflare.com...
failed to unmarshal quick Tunnel: invalid character 'e' looking for beginning of value

[caewok]

Stopped working for me too; same error as OP. This would be using Ubuntu 22.04.3.

[Walledgarden]

As OP mentioned, this problem seems to be related to some ratelimit. As of now, this is still does not show a sufficient error message and leads to confusion.

[moomoo-dev]

So this was never fixed, or is there a work around for this ?

[MegaMaddin]

@moomoo-dev Since this seems to be missing error handling when being rate-limited, what worked for me was waiting for an hour or so until re-opening the next tunnel. As mentioned earlier, this can be certainly worked-around by creating a pre-defined tunnel, but I also agree that this should be fixed within cloudflared. I actually really like that no-setup tunnel feature and use this quite often for local development purposes...