Forge tunnel doesn't work with HTML error responses

Hi everyone,

I encountered an issue today where requests from Custom UI to resolver functions are returning errors in HTML format. Here’s the error message:

Has anyone else experienced this? Could it be a global outage affecting the Forge tunnel ↔ Cloudflare integration? Any thoughts on how to resolve this?

Everything was working fine yesterday across multiple apps, but today, all of the apps that use the resolver via the bridge are facing the same issue.

Any help or insights would be appreciated.

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Seeing the same. Reloading several times saw the problem persisted and then it reverted back to the deployed Forge app (non-tunnel).

It appears to me that the Custom UI part of my part was successfully tunnelled to my dev server while the resolver backend was not. Thus it doesn’t seem to be a total outage but only the Forge FaaS is unable to tunnel.

Thank you, I’m glad I’m not the only one experiencing this issue. Does anyone know where I can report this problem to the Forge team?

You are definitely not the only one, I am running into this myself this morning.

A work around is to run a deploy for any API side changes, and iterate on the client side using the tunnel, but it is certainly making iterations on the API side more challenging.

@KaiserSoft, since you asked, and others,

I have every confidence this thread will be seen by the right people, when their timezone comes on-line. However, I would recommend reporting a clear problem like this with developer support. That formal channels is the best way to make sure tickets get logged and action will be taken as quickly as possible.

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@KaiserSoft and others,
I attempted to reproduce the issue but was unsuccessful. I have contacted Cloudflare to inquire about any potential outages. Is this error still persisting?

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@LashaniPerera,
I’ve tested it with several apps, and everything is now working as expected. There are no more error messages from Cloudflare. Thank you!

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