Allow SpeculationRules prefetch for ServiceWorker-controlled URLs

Policy ID
PrefetchWithServiceWorkerEnabled
Scope
Computer Configuration, User Configuration
Supported on
Microsoft Edge version 138, Windows 7 or later
Source
Microsoft Edge Policy Templates (version 155.0.4283.45)
Category
Microsoft Edge

Description

Controls whether SpeculationRules prefetch requests are allowed for
ServiceWorker-controlled URLs.

With Microsoft Edge version 138,
prefetch requests to ServiceWorker-controlled URLs are allowed by default when
the PrefetchServiceWorker feature is enabled.

If this policy is enabled or not configured, that default behavior is used.

To restore the legacy behavior from versions before 138, where prefetch requests
to ServiceWorker-controlled URLs were blocked, set this policy to disabled.

This policy is intended to be temporary and will be removed in the future.

Registry

ComputerHKEY_LOCAL_MACHINE
  • PrefetchWithServiceWorkerEnabledREG_DWORD
UserHKEY_CURRENT_USER
  • PrefetchWithServiceWorkerEnabledREG_DWORD

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