From 5021acf4a45c0c964df67bb2d3460515e1d41410 Mon Sep 17 00:00:00 2001 From: MajorTanya Date: Thu, 17 Apr 2025 05:11:53 +0200 Subject: [PATCH] Re-add CF Workers destructuring workaround note A user mentioned encountering the "This script will never generate a response" warning when running `vite dev` in a Vite+Typescript+Preact project for Cloudflare Workers. They were using wrangler 4.11.1, so the previously linked wrangler issue shouldn't be relevant (that one also didn't cause this warning if I'm not mistaken). On a hunch, I asked them to try the classic destructuring workaround and it worked. Not sure if this is an issue with vite, wrangler, Preact, or any other component in the mix in their project, but it seems this will be useful to people still. (and the comment referring to the note was still in the code block anyway, so) --- itty-router/guides/cloudflare-workers.md | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/itty-router/guides/cloudflare-workers.md b/itty-router/guides/cloudflare-workers.md index c83e939..10b3393 100644 --- a/itty-router/guides/cloudflare-workers.md +++ b/itty-router/guides/cloudflare-workers.md @@ -13,4 +13,12 @@ router.get('/', () => 'Success!') export default router // see note below ``` + +

If you are getting a "The script will never generate a response" warning, destructure your root router like this:

+ + ```ts + export default { ...router } // this looks pointless, but trust us + ``` + + It's also possible to [setup proper types for the Worker environment and execution context](/itty-router/typescript/additional-arguments#typed-example-assumes-cloudflare-workers).