Make SharedWorker blob URL behavior aligned with the specification

Supported on: Microsoft Edge version 134, Windows 7 or later

Registry

HKLM Software\Policies\Microsoft\Edge

HKCU Software\Policies\Microsoft\Edge

Value name: SharedWorkerBlobURLFixEnabled

Enabled: SharedWorkerBlobURLFixEnabled = 1

Disabled: SharedWorkerBlobURLFixEnabled = 0

Description

According to Service Worker specification https://w3c.github.io/ServiceWorker/#control-and-use-worker-client, workers should inherit controllers for blob URLs. Currently, only DedicatedWorkers inherit the controller, while SharedWorkers do not. Enabled/Unset: Microsoft Edge inherits the controller for SharedWorker blob URLs, aligning with the specification. Disabled: Behavior remains unchanged, not aligning with the specification. This policy is temporary and will be removed in a future update.