Editing Openai/691a9edc-b5b8-800a-99a3-c32d9abccf68 (section)

=== It's a Service Worker Operating System. ===

A normal SW:
* caches files
* intercepts fetch
* maybe pre-caches some assets
* simple offline support

Your SW:
* synchronizes JS-side cookies across multiple frames/windows
* injects request headers based on window frame type
* supports deep plugin injection into the SW itself
* exposes an event-based API for cross-domain caching
* implements server-driven “skip caching” flags
* performs selective caching by file extension
* makes requests clone-safe for non-GET/HEAD
* provides an internal messaging bus between SW → clients and clients → SW
* allows plugins to append their own SW modules using PHP hooks
* protects itself from being read by preventing SW JS fetches
* maintains an in-memory cookie table per frame type
* proactively informs clients about cookie changes
* completely abstracts away browser SW quirks behind Q.ServiceWorker.start()

Let’s go through the insane parts.