WebGPU: ServiceWorker and SharedWorker support

Category: Graphics
Type: Chromium catches up
Status: Enabled by default (Chrome 124)
Intent stage: None

Breaking change: No
Enterprise impact: None
Spec maturity: Working draft
Web Platform Tests: Yes

WPT details: WebGPU/WGSL have a conformance test suite (https://github.com/gpuweb/cts) that is regularly pulled into Chromium and part of the testing of Dawn/Tint in Chromium. PRs: https://github.com/gpuweb/cts/pull/3419 - https://github.com/gpuweb/cts/pull/3345

Summary

Functionality added to the WebGPU spec after its first shipment in a browser. ServiceWorker and SharedWorker support is added to WebGPU, aligning with existing WebGL capabilities.

Motivation

WebGPU being exposed to ServiceWorker and SharedWorker would open up opportunities such as building AI browser extensions with WebGPU.

Standards & signals

Specification: https://gpuweb.github.io/gpuweb/#navigator-gpu
Firefox: Positive
Safari: Closed Without a Position
Web developers: Positive
Tracking bug: https://bugs.chromium.org/p/chromium/issues/detail?id=1521763

Ecosystem

Web Platform Tests: https://wpt.fyi/results/?q=webgpu%2FWGSL
Chrome Platform Showcase: https://chrome-platform-showcase.paulkinlan-ea.deno.net/features
GenDN reference: https://gendn.paulkinlan-ea.deno.net/features
chrome.dev demos search: https://www.google.com/search?q=site%3Achrome.dev+WebGPU%3A%20ServiceWorker%20and%20SharedWorker%20support
MDN Web Docs: https://developer.mozilla.org/en-US/search?q=WebGPU%3A%20ServiceWorker%20and%20SharedWorker%20support
Baseline status: https://webstatus.dev/?q=WebGPU%3A%20ServiceWorker%20and%20SharedWorker%20support

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