w3c/ServiceWorker

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Service Workers

Stars: 3.6k
Forks: 324
Open beginner issues: 0
Indexed issues: 234
Avg merge: 14d 22h
Merged PRs (30d): 1

Dominant language: Bikeshed
License: No license data
Last GitHub push: Sep 17, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

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234 open issues indexed

Export SW primitives needed by FedCM and Payment Handler for JIT registration Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

w3c/ServiceWorker#1846 · Opened Sep 2, 2026
TPAC 2026 Status Report Open

TPAC2026

Difficulty 3/5 1-2 days Newbie friendliness 35/100

w3c/ServiceWorker#1845 · Opened Aug 13, 2026
Use a per-cache dedicated parallel queue for Cache API methods Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

w3c/ServiceWorker#1841 · 1 comment · Opened Aug 4, 2026
Use a dedicated parallel queue for the Clients API Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

w3c/ServiceWorker#1840 · 1 comment · Opened Aug 4, 2026
Accept-CH frame duplicates fetch events and preloads Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

w3c/ServiceWorker#1810 · 4 comments · Opened Dec 8, 2025
Better hooks for functional events Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1808 · 4 comments · Opened Nov 25, 2025
Preserve sec-fetch-dest for passed navigate requests Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

w3c/ServiceWorker#1803 · 5 comments · 10 reactions · Opened Nov 7, 2025
Support No-Vary-Search header in Cache API Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1798 · 11 comments · Opened Oct 21, 2025
Support CacheStorage.match() options in SW Static Routing API cache source Open

w3c/ServiceWorker#1797 · 5 comments · 1 assignee · Opened Oct 21, 2025
Synthetic Response via Static Routing API Open

TPAC2025

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1796 · 4 comments · Opened Oct 16, 2025
Need for a mechanism to detect supported conditions and sources in the SW Static Routing API Open

TPAC2025

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1793 · 4 comments · Opened Oct 1, 2025
TPAC 2025 status report Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

w3c/ServiceWorker#1787 · 1 comment · Opened Aug 12, 2025
Service worker registration when context doing the registration goes away Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

w3c/ServiceWorker#1781 · 1 comment · Opened Jul 4, 2025
OpenWindow lacks either sourceDocument or userInvolvement argument when running Navigate algorithm Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

w3c/ServiceWorker#1776 · 7 comments · Opened Jun 3, 2025
Maximum file size that cache should support Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1770 · 7 comments · Opened May 16, 2025
Avoid using "anchors" block for referencing other specs in Bikeshed Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

w3c/ServiceWorker#1763 · 3 comments · Opened Apr 3, 2025
Fix SW spec to allow publishing Editor's Draft as a CR's via automation. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

w3c/ServiceWorker#1758 · 10 comments · Opened Mar 4, 2025
Require `[SecureContext]` for interfaces with `[Exposed=ServiceWorker]` or not? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1749 · 2 comments · Opened Jan 26, 2025
InstallEvent.addRoutes is resolving/rejecting the returned promise synchronously Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

w3c/ServiceWorker#1742 · 4 comments · Opened Jan 21, 2025
Missing tasks in parallel steps in Service Workers Nightly Open

w3c/ServiceWorker#1740 · 1 assignee · Opened Jan 7, 2025
active service worker should be reset for same-origin redirects during navigation Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

w3c/ServiceWorker#1735 · 1 comment · Opened Nov 4, 2024
Inconsistencies in ServiceWorkerClients get and matchAll implementations Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1734 · 7 comments · Opened Nov 4, 2024
Job promise is an ECMAScript type, not WebIDL Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

w3c/ServiceWorker#1731 · 2 comments · Opened Oct 3, 2024
Should IndexedDB allow indexing on Request/Response properties Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1730 · Opened Oct 1, 2024
Allow the service worker to work in the background without stopping for installed PWA Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1728 · 7 comments · 9 reactions · Opened Sep 4, 2024
Sandboxing untrusted code offline is currently impossible Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1727 · 2 comments · 5 reactions · Opened Aug 28, 2024
Normative references to discontinued specs in Service Workers Nightly Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

w3c/ServiceWorker#1726 · Opened Aug 28, 2024
expose installed service worker script contents or sum Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1725 · 3 comments · 2 reactions · Opened Aug 26, 2024
"Batch Cache Operations" contains a parable that confuses me Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

w3c/ServiceWorker#1724 · 1 comment · Opened Aug 22, 2024
Should referer header be included in fetchEvent request object? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1723 · Opened Jul 27, 2024
Promise<FrozenArray<T>> should become Promise<sequence<T>> Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

w3c/ServiceWorker#1722 · Opened Jun 26, 2024
`caches` global property should not be available in Dedicated/Shared WorkerGlobalScope with `{credentials: 'omit'}` Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1721 · 1 comment · Opened Jun 8, 2024
No examples around addRoutes() API Open

Difficulty 2/5 1-3 hours Newbie friendliness 38/100

w3c/ServiceWorker#1717 · 1 comment · Opened May 7, 2024
Can we make to avoid to invoke ServiceWorker _by default_ for if user code call `event.addRoutes(rules)` in `install` event handler? Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

w3c/ServiceWorker#1712 · 5 comments · Opened Mar 19, 2024
Support import() local code in extension service worker Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1700 · 2 comments · 6 reactions · Opened Jan 8, 2024
Unable to insert conditional-request headers in Service Worker? Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

w3c/ServiceWorker#1699 · 1 reaction · Opened Dec 24, 2023
dynamically registered event listeners for extension service worker Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1698 · 4 comments · 1 reaction · Opened Dec 22, 2023
How can I control and manage socket events in Service Workers? Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

w3c/ServiceWorker#1697 · 1 comment · Opened Nov 3, 2023
Support `close()` method in ServiceWorkerGlobalScope Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1696 · 3 comments · Opened Oct 31, 2023
Service Workers are too hard to clean-up Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

w3c/ServiceWorker#1695 · 9 comments · 15 reactions · Opened Oct 30, 2023
Allow Querying a CacheStorage Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1694 · Opened Oct 4, 2023
Don't require Cache API to have a secure context Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

w3c/ServiceWorker#1691 · Opened Aug 21, 2023
Add a Service-Worker-Exclude Header Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1690 · 8 comments · Opened Aug 19, 2023
If an expection is thrown in the activate phase, the service worker should be terminated Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1688 · Opened Jul 19, 2023
Unregister a service worker when another tab is controlled by it can "resurrect" it (Chrome) Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

w3c/ServiceWorker#1687 · 2 comments · Opened Jul 19, 2023
Wanna know what kind of module i'm dealing with Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

w3c/ServiceWorker#1685 · 1 reaction · Opened Jul 4, 2023
Should Cache#addAll reject with AbortSignal's reason if the signal is already aborted? Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

w3c/ServiceWorker#1684 · 3 comments · Opened Jun 16, 2023
Support subresource integrity for service workers Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

w3c/ServiceWorker#1680 · 2 comments · 14 reactions · Opened May 18, 2023
FetchEvent: add origin check before setting replacesClientId Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

w3c/ServiceWorker#1679 · 1 comment · Opened May 17, 2023
Batch Cache Operations can't return an empty list Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

w3c/ServiceWorker#1677 · Opened Apr 17, 2023

w3c/ServiceWorker

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