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Initial serialization data for Worker

addition/proposalNew features or enhancementsNew features or enhancements

needs implementer interestMoving the issue forward requires implementers to express interestMoving the issue forward requires implementers to express interest

topic: serialize and transfer

topic: workers

Status: Open.

#11749 In whatwg/html;

· guybedford opened on Oct 4, 2025

Add extended lifetime shared workers

addition/proposalNew features or enhancementsNew features or enhancements

do not merge yetPull request must not be merged per rationale in commentPull request must not be merged per rationale in comment

topic: workers

Status: Open (in progress).

whatwg/htmlnumber 11600

#11600 In whatwg/html;

· domenic opened on Aug 27, 2025

Further clarify worker lifetime relationships

clarificationStandard could be clearerStandard could be clearer

topic: workers

Status: Open (in progress).

whatwg/htmlnumber 11599

#11599 In whatwg/html;

· domenic opened on Aug 27, 2025

What should be the interaction between SharedWorkers and inactive documents

clarificationStandard could be clearerStandard could be clearer

topic: workers

Status: Open.

#11520 In whatwg/html;

· fergald opened on Aug 1, 2025

WorkerGlobal scope's URL accessed for fetch blob partitioning before being set

topic: workers

Status: Open.

#11340 In whatwg/html;

· shannonbooth opened on May 28, 2025

SharedWorker constructor presumes sync access to several global objects while in parallel

clarificationStandard could be clearerStandard could be clearer

topic: workers

Status: Open.

#11314 In whatwg/html;

· ADKaster opened on May 16, 2025

Discuss out-of-memory etc. agent cluster killing, especially for shared workers?

topic: agentThe interaction with JavaScript's agent and agent cluster conceptsThe interaction with JavaScript's agent and agent cluster concepts

topic: workers

Status: Open.

#11205 In whatwg/html;

· domenic opened on Apr 10, 2025

Support import maps in workers

addition/proposalNew features or enhancementsNew features or enhancements

topic: script

topic: workers

Status: Draft (not ready).

whatwg/htmlnumber 10858

#10858 In whatwg/html;

· nicolo-ribaudo opened on Dec 12, 2024

Provide an API in dedicate worker for executing event loop

addition/proposalNew features or enhancementsNew features or enhancements

needs implementer interestMoving the issue forward requires implementers to express interestMoving the issue forward requires implementers to express interest

topic: workers

Status: Open.

#10596 In whatwg/html;

· burningtnt opened on Sep 2, 2024

Can messageerror fire on Worker?

topic: workers

Status: Open.

#10262 In whatwg/html;

· foolip opened on Apr 8, 2024

Constrain OffscreenCanvas with a placeholder canvas element

topic: canvas

topic: event loop

topic: serialize and transfer

topic: workers

Status: Open.

#10112 In whatwg/html;

· beaufortfrancois opened on Jan 31, 2024

Ergonomic way to move data between workers

addition/proposalNew features or enhancementsNew features or enhancements

needs implementer interestMoving the issue forward requires implementers to express interestMoving the issue forward requires implementers to express interest

topic: workers

Status: Open.

#10078 In whatwg/html;

· jakearchibald opened on Jan 19, 2024