Chromium SharedWorker fails to load importScripts from worker.js

[rockerBOO]

Describe the Bug

When using SharedWorker, the worker importScripts fails to load due to DOM exception in Chromium Version 119.0.6045.159 (Official Build, ungoogled-chromium) Arch Linux (64-bit).

Steps to Reproduce

I took the web workers code from https://rustwasm.github.io/wasm-bindgen/examples/wasm-in-web-worker.html and exchanged in SharedWorker and added the SharedWorker and MessagePort feature.

git clone https://github.com/rockerBOO/shared-worker-debug-test
wasm-pack build --target no-modules
python -m http-server 

Then in Chromium the address http://localhost:8000, and in a separate tab go to chrome://inspect/#workers and inspect the shared worker.

Expected Behavior

Exchanging out the Worker to SharedWorker should work in Chromium. Works in Chrome,Firefox though.

Actual Behavior

DOMException when trying to load the web workers script.

Uncaught DOMException: Failed to execute 'importScripts' on 'WorkerGlobalScope': The script at 'http://localhost:8081/pkg/wasm_in_web_worker.js' failed to load.
    at http://localhost:8081/worker.js:5:1
(anonymous) @ worker.js:5

Additional Context

I'm realizing this now as it only seems to happen in chromium. Thought it was initially as Chrome related. Did a test in Chrome and it works as expected though.

[LucaCappelletti94]

Hi! I am encountering the same issue, not only on Chromium. See more here on this other GitHub issue. Did you find any solution?

[daxpedda]

I think the error message is quite correct, not all browsers actually support importScripts in every context yet, though I don't know what the current state is.