JavaScript modules in workers
Newly available since 2023-06-06
The Worker() constructor accepts { type: "module" } to load scripts that use import and export. Also known as ECMAScript modules or ESM in workers.
Learning resources on MDN
Browser support
- Chrome 80 Released on 2020-02-04
- Chrome Android 80 Released on 2020-02-04
- Edge 80 Released on 2020-02-07
- Firefox 114 Released on 2023-06-06
- Firefox for Android 114 Released on 2023-06-06
- Safari 15 Released on 2021-09-20
- Safari on iOS 15 Released on 2021-09-20
Specifications
- HTML (#dom-worker-dev), from HTML Workstream (WHATWG).
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