Context

Many extensions which extend DevTools can work even if there is no page being inspected:

• An extension which provides developer resources like documentation in DevTools
• An extension which provides functionality tied to an entire origin, e.g https://chromewebstore.google.com/detail/privacy-sandbox-analysis/ehbnpceebmgpanbbfckhoefhdibijkef
• Other special cases e.g https://chromewebstore.google.com/detail/cc++-devtools-support-dwa/pdcpmagijalfljmkmjngeonclgbbannb

Running these extensions in service workers would be a breaking change as it may break assumptions made by developers.

Proposal

Allow opt-in to running devtools_page for service workers with a devtools_supports_service_worker: true key in the manifest.

The devtools.inspectedWindow.tabId property would be undefined.

We could expose a context type field (e.g devtools.inspectedWindow.contextType) to help extensions identify this scenario.