Cross Domain Web Worker?

Question

I have https://domain1.com (domain1) and https://domain2.com (domain2).

Domain2 serves a page containing javascript with this header:

"Access-Control-         


        

Answer 1

It's pretty funny, but importScripts() inside the worker does not have the same origin restriction. So I used this plain workaround:

const workerUrl = 'https://domain2.com/script.js';
const workerBlob = new Blob([
    'importScripts(' + JSON.stringify(workerUrl) + ')',
], {type: 'application/javascript'});
const blobUrl = window.URL.createObjectURL(workerBlob);
const worker = new Worker(blobUrl);

Somewhat simpler than fetching script manually.