Service Worker Settings

[bwarring]

There is reference to a Service Worker Settings Table below. And that does not exist. The issue I am attempting to resolve is Warning: In index.html:37: Local variable for "serviceWorkerVersion" is deprecated. Use "{{flutter_service_worker_version}}" template token instead. See https://docs.flutter.dev/platform-integration/web/initialization for more details.. There is zero information on this page that is helpful in context of the issue.

[sfshaza2]

This appears to be a relatively common issue and the tooling redirects to the aforementioned page. I almost want a breaking change page created but, for now, I've added info to this page and have changed the comment in the table. Waiting for review from eng/pms.