feat: add SW stub

web/public/service-worker.js

@@ -0,0 +1,19 @@
+// Self-destructible service worker stub to self-destruct old broken v1 SW
+
+self.addEventListener('install', function(e) {
+  self.skipWaiting();
+})
+
+self.addEventListener('activate', function(e) {
+  self.registration.unregister()
+    .then(function () {
+      return self.clients.matchAll();
+    })
+    .then(function (clients) {
+      clients.forEach(client => {
+        if (client instanceof WindowClient) {
+          client.navigate(client.url)
+        }
+      })
+    });
+})

web/src/serviceWorkerRegistration.ts

@@ -1,167 +1,4 @@
 /// <reference types="node" />
-// This optional code is used to register a service worker.
-// register() is not called by default.
-
-// This lets the app load faster on subsequent visits in production, and gives
-// it offline capabilities. However, it also means that developers (and users)
-// will only see deployed updates on subsequent visits to a page, after all the
-// existing tabs open on the page have been closed, since previously cached
-// resources are updated in the background.
-
-// To learn more about the benefits of this model and instructions on how to
-// opt-in, read https://cra.link/PWA
-import { trimSuffix } from './utils/path'
-
-const BASE_URL = trimSuffix(import.meta.env.BASE_URL, '/')
-
-const isLocalhost = Boolean(
-  window.location.hostname === 'localhost' ||
-    // [::1] is the IPv6 localhost address.
-    window.location.hostname === '[::1]' ||
-    // 127.0.0.0/8 are considered localhost for IPv4.
-    window.location.hostname.match(/^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/),
-)
-
-interface Config {
-  onSuccess?: (registration: ServiceWorkerRegistration) => void
-  onUpdate?: (registration: ServiceWorkerRegistration) => void
-}
-
-export function register(config?: Config) {
-  if (import.meta.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
-    // The URL constructor is available in all browsers that support SW.
-    const publicUrl = new URL(BASE_URL, window.location.href)
-    if (publicUrl.origin !== window.location.origin) {
-      // Our service worker won't work if BASE_URL is on a different origin
-      // from what our page is served on. This might happen if a CDN is used to
-      // serve assets; see https://github.com/facebook/create-react-app/issues/2374
-      return
-    }
-
-    window.addEventListener('load', () => {
-      const swUrl = `${BASE_URL}/service-worker.js`
-
-      if (isLocalhost) {
-        // This is running on localhost. Let's check if a service worker still exists or not.
-        checkValidServiceWorker(swUrl, config)
-
-        // Add some additional logging to localhost, pointing developers to the
-        // service worker/PWA documentation.
-        // eslint-disable-next-line @typescript-eslint/no-floating-promises
-        navigator.serviceWorker.ready.then((reg) => {
-          console.log(
-            'This web app is being served cache-first by a service ' +
-              'worker. To learn more, visit https://cra.link/PWA',
-          )
-          reg.update().catch((err) => {
-            console.error('Failed to update service worker: ', err)
-          })
-        })
-      } else {
-        // Is not localhost. Just register service worker
-        registerValidSW(swUrl, config)
-      }
-    })
-  }
-}
-
-/**
- * Manually registers service worker
- *
- * @param config
- */
-export function manualRegister(config?: Config) {
-  if (import.meta.env.DEV) {
-    return
-  }
-  if (!('serviceWorker' in navigator)) {
-    return
-  }
-
-  const publicUrl = new URL(BASE_URL, window.location.href)
-  if (publicUrl.origin !== window.location.origin) {
-    return
-  }
-
-  const swUrl = `${BASE_URL}/service-worker.js`
-  if (isLocalhost) {
-    checkValidServiceWorker(swUrl, config)
-    return
-  }
-
-  registerValidSW(swUrl, config)
-}
-
-function registerValidSW(swUrl: string, config?: Config) {
-  navigator.serviceWorker
-    .register(swUrl)
-    .then((registration) => {
-      registration.onupdatefound = () => {
-        const installingWorker = registration.installing
-        if (installingWorker == null) {
-          return
-        }
-        installingWorker.onstatechange = () => {
-          if (installingWorker.state === 'installed') {
-            if (navigator.serviceWorker.controller) {
-              // At this point, the updated precached content has been fetched,
-              // but the previous service worker will still serve the older
-              // content until all client tabs are closed.
-              console.log(
-                'New content is available and will be used when all ' +
-                  'tabs for this page are closed. See https://cra.link/PWA.',
-              )
-
-              // Execute callback
-              if (config?.onUpdate) {
-                config.onUpdate(registration)
-              }
-            } else {
-              // At this point, everything has been precached.
-              // It's the perfect time to display a
-              // "Content is cached for offline use." message.
-              console.log('Content is cached for offline use.')
-
-              // Execute callback
-              if (config?.onSuccess) {
-                config.onSuccess(registration)
-              }
-            }
-          }
-        }
-      }
-    })
-    .catch((error) => {
-      console.error('Error during service worker registration:', error)
-    })
-}
-
-function checkValidServiceWorker(swUrl: string, config?: Config) {
-  // Check if the service worker can be found. If it can't reload the page.
-  fetch(swUrl, {
-    headers: { 'Service-Worker': 'script' },
-  })
-    .then((response) => {
-      // Ensure service worker exists, and that we really are getting a JS file.
-      const contentType = response.headers.get('content-type')
-      if (response.status === 404 || (contentType != null && !contentType.includes('javascript'))) {
-        // No service worker found. Probably a different app. Reload the page.
-        // eslint-disable-next-line @typescript-eslint/no-floating-promises
-        navigator.serviceWorker.ready.then((registration) => {
-          // eslint-disable-next-line @typescript-eslint/no-floating-promises
-          registration.unregister().then(() => {
-            window.location.reload()
-          })
-        })
-      } else {
-        // Service worker found. Proceed as normal.
-        registerValidSW(swUrl, config)
-      }
-    })
-    .catch(() => {
-      console.log('No internet connection found. App is running in offline mode.')
-    })
-}
 
 export function unregister() {
   if ('serviceWorker' in navigator) {