Cannot import scripts starting with "@" in the name from worker

[fnky]

I'm trying to import @radix-ui/colors from a worker script:

let w = createWorker(async w => {
  let colors = await w.import("@radix-ui/colors");
  w.send(JSON.stringify(colors));
});
print(await w.recv());

But it throws the following error:

Error: Failed to execute 'importScripts' on 'WorkerGlobalScope':
  The script at 'https://unpkg.com/@radix-ui/colors' failed to load.

This also happens with any URL starting with an at-symbol in a path:

https://cdn.skypack.dev/@radix-ui/colors
https://unpkg.com/@radix-ui/[email protected]/index.js

If I import a module without an at-symbol, it works correctly:

let w = createWorker(async w => {
  let colors = await w.import("culori");
  w.send(JSON.stringify(colors));
});
print(await w.recv());