Service workers requests blocked by the Brave Shield

Description of the issue:

Brave Shield blocks service worker requests whether the shield is enabled or disabled.

Steps to Reproduce:

  1. Connect to
  2. Disable Brave shield.
  3. Open dev tools and navigate to the network tab.
  4. Reload the page to see the failed requests in the network tab.

Actual Result:

The service worker requests are blocked. (Screenshot below)

Expected result:

The request should not be blocked

Reproduces how often:


Brave Version:


Reproducible on current live release:


Additional Information:

The Brave Shield works as expected when Service Workers are disabled (Open Dev Tools > Go to Application tab > Click Service Workers on the left > Tick “Bypass for Network”).

Here’s a summary of outcomes:

Service Worker Brave Shield Are Service Worker Requests blocked?
Enabled Enabled Yes
Enabled Disabled Yes
Disabled Enabled Yes
Disabled Disabled No

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