fix: adapter-cloudflare-workers prerendering bug [w/ reproduction]

[f5io]

Hi there!

I noticed a slight discrepancy between adapter-cloudflare and adapter-cloudflare-workers. I need the ability to pass esbuild plugins into the adapter for some issues around running Stripe on cloudflare. Hopefully this small change is OK.

edit: In investigating further issues whilst attempting to run miniflare against a sveltekit build output, I discovered that there is an error in the way
prerendered files are resolved from the asset KV.

• Reproduction Repo
• Live Example

I am unable to complete a test run due to an error in adapter-netlify. I am also unable to complete a check due to an error in packages/kit/test/apps/amp.

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🦋 Changeset detected

Latest commit: a5aa190

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@sveltejs/adapter-cloudflare-workers	Patch

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[f5io]

there also seems to be an issue with the resolution of prerendered pages for the cloudflare-workers adapter. it seems the getAssetFromKV's default mapRequestToAsset function doesnt quite cover the use-case properly.

i do have it working with some slight change to the manifest generation and by passing in a custom mapRequestToAsset function to getAssetFromKV however it is not yet part of this PR. happy to include it if needs be.

[dominikg]

fyi, there are more pending changes to adapter-cloudflare-workers. #4276 there has been some discussion about kvAssetHandler in that PR too.

[f5io]

thanks for pointing me in the direction of the existing work @dominikg. in doing a bit more research, ive found that the current release of the adapter simply does not work correctly for prerendered pages. is there any chance this could be seen as a hotfix that could be released rather than waiting on the migration to Module Workers?

[Rich-Harris]

Closing in favour of #4626, which brings this up to date following #4276