This is a repro of Payload SDK not working on Cloduflare Workers with SvelteKit

Step 1 - install dependencies

pnpm i

Step 2 - generate worker-configuration.d.ts

pnpm generate

Step 3 - Set variables in wrangler.jsonc

Connect to any existing Payload CMS that have a publicly available globals

{
    "vars": {
        "PUBLIC_PAYLOAD_ORIGIN": <YOUR_PAYLOAD_ORIGIN>,
        "PUBLIC_SLUG": <YOUR_PUBLIC_GLOBALS>
    }
}

Step 4 - Test with local development

Go to http://localhost:5173 to see the fetched data from Payload SDK

pnpm dev

Step 5 - Test with local built files

Go to http://localhost:4173 to see the fetched data from Payload SDK

pnpm build
pnpm preview

Step 6 - Test with Wrangler

wrangler dev

Go to http://localhost:8787 to see the fetched data from Payload SDK or the illegal invocation error message

"Illegal invocation: function called with incorrect `this` reference. See https://developers.cloudflare.com/workers/observability/errors/#illegal-invocation-errors for details."