Again, related to [12964](https://github.com/zeit/next.js/issues/12964)
After checking all the other examples and the ongoing pull requests, I believe that with this PR being merged, all the examples should be free of redundant react imports.
Let me know if you want me to edit anything that you don't like.
Regards
with-typescript
with-atstroturf
with-atlaskit
with-styletron
with-styled-components-rtl
with-stylesheet
with-stomp
with-stitches-styled
with-stitches
with-slate
with-sentry-simple
with-sentry
with-segment-analytics
with-rematch
with-relay-modern
with-reflux
with-redux-wrapper
with-react-relay-network
with-react-native
with-react-multi-carousel
with-react-jss
with-react-helmet
with-react-ga
with-quill-js
with-prefetching
with-google-analytics-amp
with-google-analytics
with-framer-motion
with-flow
with-firebase-hosting
with-firebase-cloud-messaging
with-firebase-authentication
with-expo
with-dynamic-app-layout
with-draft-js
with-cxs
with-cerebral
with-ant-design-mobile
with-algolia-react-instantsearch
using-preact
progressive-render
* Register the service worker.
* Update prefetcher code to do prefetching.
* Implement the core prefetching API.
support "import <Link>, { prefetch } from 'next/prefetch'"
* Implement a better communication system with the service worker.
* Add a separate example for prefetching
* Fix some typos.
* Initiate service worker support even prefetching is not used.
This is pretty important since initiating will reset the cache.
If we don't do this, it's possible to have old cached resources
after the user decided to remove all of the prefetching logic.
In this case, even the page didn't prefetch it'll use the
previously cached pages. That because of there might be a already running
service worker.
* Use url module to get pathname.
* Move prefetcher code to the client from pages
Now we also do a webpack build for the prefetcher code.
* Add prefetching docs to the README.md
* Fix some typo.
* Register service worker only if asked to prefetch
We also clean the cache always, even we initialize
the service worker or not.
