Warning about unsupported fetch options

[Aprillion]

What version of Remix are you using?

1.2.1

Steps to Reproduce

• create new remix project for cloudflare workers
• in a loader, use an unsupported fetch option, e.g. await fetch(..., {cache: 'force-cache'}) in
  https://github.com/Aprillion/stampy-ui/blob/9487ca0319a79f313a38de3744396b3534cacac0/app/routes/index.tsx

Expected Behavior

Some warning about unsupported fetch options, e.g.:

• a type check if possible
• fail in the same way in local dev server as it fails after deployment
• maybe a chapter in documentation about all the differences of non-native fetch from server?

Additionally, if some server environments (will) support native-like HTTP Cache, it would be nice to be able to debug server side fetch requests (similar to browser Network tab) => any documented advice how to debug server fetch would be appreciated too.

Actual Behavior

Everything worked fine locally, then I got an error after deployment to workers:

[Aprillion]

FTR: Original discussion started in https://discord.com/channels/770287896669978684/943924040962306098

[Aprillion]

Actually, I found the CF workers' version of fetch has more differences from the spec => cloudflare/cloudflare-docs#3578 to track documentation of expected differences.

Once that is documented, we could add a note to https://github.com/remix-run/remix/blob/dev/packages/create-remix/templates/cloudflare-workers/README.md to improve the developers' expectation when working with this particular deployment target.. (though, not sure how fetch behaves for other targets 🤔)

And if those differences get fixed in CF, we could even close this issue 😅

[machour]

@Aprillion Hey ! More than a year passed since you opened that issue, do you know if it's still applicable today? 🙏🏼

[Aprillion]

no idea, once I stopped using the then-unsupported fetch options, I never had a use case to use those again

[machour]

Fair enough :)
I'm closing this for now, someone will eventually open a new issue if this is still a problem, thanks!