diff --git a/.pnp.cjs b/.pnp.cjs
index 754577d..265dce6 100755
--- a/.pnp.cjs
+++ b/.pnp.cjs
@@ -55,7 +55,19 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
["react-lazyload", "virtual:d489c25e2ebeea07458b58e50f8ccfb31c1a2205a90b069d1097b87c37e4691c13f2247338ffb59360c079762786d6bbbc895d4b6a241f03e5878297f15a38ca#npm:3.2.0"],\
["react-polls", "virtual:d489c25e2ebeea07458b58e50f8ccfb31c1a2205a90b069d1097b87c37e4691c13f2247338ffb59360c079762786d6bbbc895d4b6a241f03e5878297f15a38ca#npm:1.2.0"],\
["react-scripts", "virtual:d489c25e2ebeea07458b58e50f8ccfb31c1a2205a90b069d1097b87c37e4691c13f2247338ffb59360c079762786d6bbbc895d4b6a241f03e5878297f15a38ca#npm:5.0.1"],\
- ["react-timeago", "virtual:d489c25e2ebeea07458b58e50f8ccfb31c1a2205a90b069d1097b87c37e4691c13f2247338ffb59360c079762786d6bbbc895d4b6a241f03e5878297f15a38ca#npm:7.1.0"]\
+ ["react-timeago", "virtual:d489c25e2ebeea07458b58e50f8ccfb31c1a2205a90b069d1097b87c37e4691c13f2247338ffb59360c079762786d6bbbc895d4b6a241f03e5878297f15a38ca#npm:7.1.0"],\
+ ["workbox-background-sync", "npm:6.5.4"],\
+ ["workbox-broadcast-update", "npm:6.5.4"],\
+ ["workbox-cacheable-response", "npm:6.5.4"],\
+ ["workbox-core", "npm:6.5.4"],\
+ ["workbox-expiration", "npm:6.5.4"],\
+ ["workbox-google-analytics", "npm:6.5.4"],\
+ ["workbox-navigation-preload", "npm:6.5.4"],\
+ ["workbox-precaching", "npm:6.5.4"],\
+ ["workbox-range-requests", "npm:6.5.4"],\
+ ["workbox-routing", "npm:6.5.4"],\
+ ["workbox-strategies", "npm:6.5.4"],\
+ ["workbox-streams", "npm:6.5.4"]\
],\
"linkType": "SOFT"\
}]\
@@ -16989,7 +17001,19 @@ function $$SETUP_STATE(hydrateRuntimeState, basePath) {
["react-lazyload", "virtual:d489c25e2ebeea07458b58e50f8ccfb31c1a2205a90b069d1097b87c37e4691c13f2247338ffb59360c079762786d6bbbc895d4b6a241f03e5878297f15a38ca#npm:3.2.0"],\
["react-polls", "virtual:d489c25e2ebeea07458b58e50f8ccfb31c1a2205a90b069d1097b87c37e4691c13f2247338ffb59360c079762786d6bbbc895d4b6a241f03e5878297f15a38ca#npm:1.2.0"],\
["react-scripts", "virtual:d489c25e2ebeea07458b58e50f8ccfb31c1a2205a90b069d1097b87c37e4691c13f2247338ffb59360c079762786d6bbbc895d4b6a241f03e5878297f15a38ca#npm:5.0.1"],\
- ["react-timeago", "virtual:d489c25e2ebeea07458b58e50f8ccfb31c1a2205a90b069d1097b87c37e4691c13f2247338ffb59360c079762786d6bbbc895d4b6a241f03e5878297f15a38ca#npm:7.1.0"]\
+ ["react-timeago", "virtual:d489c25e2ebeea07458b58e50f8ccfb31c1a2205a90b069d1097b87c37e4691c13f2247338ffb59360c079762786d6bbbc895d4b6a241f03e5878297f15a38ca#npm:7.1.0"],\
+ ["workbox-background-sync", "npm:6.5.4"],\
+ ["workbox-broadcast-update", "npm:6.5.4"],\
+ ["workbox-cacheable-response", "npm:6.5.4"],\
+ ["workbox-core", "npm:6.5.4"],\
+ ["workbox-expiration", "npm:6.5.4"],\
+ ["workbox-google-analytics", "npm:6.5.4"],\
+ ["workbox-navigation-preload", "npm:6.5.4"],\
+ ["workbox-precaching", "npm:6.5.4"],\
+ ["workbox-range-requests", "npm:6.5.4"],\
+ ["workbox-routing", "npm:6.5.4"],\
+ ["workbox-strategies", "npm:6.5.4"],\
+ ["workbox-streams", "npm:6.5.4"]\
],\
"linkType": "SOFT"\
}]\
diff --git a/package.json b/package.json
index 97a5e46..71690d7 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,19 @@
"react-lazyload": "^3.2.0",
"react-polls": "^1.2.0",
"react-scripts": "5.0.1",
- "react-timeago": "^7.1.0"
+ "react-timeago": "^7.1.0",
+ "workbox-background-sync": "^6.4.2",
+ "workbox-broadcast-update": "^6.4.2",
+ "workbox-cacheable-response": "^6.4.2",
+ "workbox-core": "^6.4.2",
+ "workbox-expiration": "^6.4.2",
+ "workbox-google-analytics": "^6.4.2",
+ "workbox-navigation-preload": "^6.4.2",
+ "workbox-precaching": "^6.4.2",
+ "workbox-range-requests": "^6.4.2",
+ "workbox-routing": "^6.4.2",
+ "workbox-strategies": "^6.4.2",
+ "workbox-streams": "^6.4.2"
},
"scripts": {
"start": "react-scripts start",
diff --git a/public/index.html b/public/index.html
index 1cf46af..7d89479 100644
--- a/public/index.html
+++ b/public/index.html
@@ -10,7 +10,7 @@
-
+
diff --git a/public/static/manifest.json b/public/manifest.json
similarity index 94%
rename from public/static/manifest.json
rename to public/manifest.json
index f5ec232..34645a4 100644
--- a/public/static/manifest.json
+++ b/public/manifest.json
@@ -13,7 +13,7 @@
"type": "image/png"
}
],
- "start_url": "../",
+ "start_url": ".",
"display": "standalone",
"theme_color": "#333333",
"background_color": "#333333"
diff --git a/src/index.js b/src/index.js
index 67a2c2e..d648868 100644
--- a/src/index.js
+++ b/src/index.js
@@ -3,11 +3,11 @@ import './index.css';
import './fonts_7/icomoon.css';
import App from './App';
//import {elevate} from './infrastructure/elevator';
-import registerServiceWorker from './registerServiceWorker';
+import * as serviceWorkerRegistration from './serviceWorkerRegistration';
//elevate();
const container = document.getElementById('root');
const root = createRoot(container); // createRoot(container!) if you use TypeScript
root.render();
-registerServiceWorker();
+serviceWorkerRegistration.register();
diff --git a/src/service-worker.js b/src/service-worker.js
new file mode 100644
index 0000000..c1566b0
--- /dev/null
+++ b/src/service-worker.js
@@ -0,0 +1,73 @@
+/* eslint-disable no-restricted-globals */
+
+// This service worker can be customized!
+// See https://developers.google.com/web/tools/workbox/modules
+// for the list of available Workbox modules, or add any other
+// code you'd like.
+// You can also remove this file if you'd prefer not to use a
+// service worker, and the Workbox build step will be skipped.
+
+import { clientsClaim } from 'workbox-core';
+import { ExpirationPlugin } from 'workbox-expiration';
+import { precacheAndRoute, createHandlerBoundToURL } from 'workbox-precaching';
+import { registerRoute } from 'workbox-routing';
+import { StaleWhileRevalidate } from 'workbox-strategies';
+
+clientsClaim();
+
+// Precache all of the assets generated by your build process.
+// Their URLs are injected into the manifest variable below.
+// This variable must be present somewhere in your service worker file,
+// even if you decide not to use precaching. See https://cra.link/PWA
+precacheAndRoute(self.__WB_MANIFEST);
+
+// Set up App Shell-style routing, so that all navigation requests
+// are fulfilled with your index.html shell. Learn more at
+// https://developers.google.com/web/fundamentals/architecture/app-shell
+const fileExtensionRegexp = new RegExp('/[^/?]+\\.[^/]+$');
+registerRoute(
+ // Return false to exempt requests from being fulfilled by index.html.
+ ({ request, url }) => {
+ // If this isn't a navigation, skip.
+ if (request.mode !== 'navigate') {
+ return false;
+ } // If this is a URL that starts with /_, skip.
+
+ if (url.pathname.startsWith('/_')) {
+ return false;
+ } // If this looks like a URL for a resource, because it contains // a file extension, skip.
+
+ if (url.pathname.match(fileExtensionRegexp)) {
+ return false;
+ } // Return true to signal that we want to use the handler.
+
+ return true;
+ },
+ createHandlerBoundToURL(process.env.PUBLIC_URL + '/index.html'),
+);
+
+// An example runtime caching route for requests that aren't handled by the
+// precache, in this case same-origin .png requests like those from in public/
+registerRoute(
+ // Add in any other file extensions or routing criteria as needed.
+ ({ url }) =>
+ url.origin === self.location.origin && url.pathname.endsWith('.png'), // Customize this strategy as needed, e.g., by changing to CacheFirst.
+ new StaleWhileRevalidate({
+ cacheName: 'images',
+ plugins: [
+ // Ensure that once this runtime cache reaches a maximum size the
+ // least-recently used images are removed.
+ new ExpirationPlugin({ maxEntries: 50 }),
+ ],
+ }),
+);
+
+// This allows the web app to trigger skipWaiting via
+// registration.waiting.postMessage({type: 'SKIP_WAITING'})
+self.addEventListener('message', (event) => {
+ if (event.data && event.data.type === 'SKIP_WAITING') {
+ self.skipWaiting();
+ }
+});
+
+// Any other custom service worker logic can go here.
diff --git a/src/registerServiceWorker.js b/src/serviceWorkerRegistration.js
similarity index 51%
rename from src/registerServiceWorker.js
rename to src/serviceWorkerRegistration.js
index b8ef96e..52a02fe 100644
--- a/src/registerServiceWorker.js
+++ b/src/serviceWorkerRegistration.js
@@ -1,76 +1,93 @@
-// In production, we register a service worker to serve assets from local cache.
+// 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 the "N+1" visit to a page, since previously
-// cached resources are updated in the background.
+// 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, read https://goo.gl/KwvDNy.
-// This link also includes instructions on opting out of this behavior.
+// To learn more about the benefits of this model and instructions on how to
+// opt-in, read https://cra.link/PWA
const isLocalhost = Boolean(
window.location.hostname === 'localhost' ||
// [::1] is the IPv6 localhost address.
window.location.hostname === '[::1]' ||
- // 127.0.0.1/8 is considered localhost for IPv4.
+ // 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}$/,
),
);
-export default function register() {
+export function register(config) {
if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
// The URL constructor is available in all browsers that support SW.
- // const publicUrl = new URL(process.env.PUBLIC_URL, window.location);
- // if (publicUrl.origin !== window.location.origin) {
- // Our service worker won't work if PUBLIC_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/facebookincubator/create-react-app/issues/2374
- // return;
- // }
+ const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href);
+ if (publicUrl.origin !== window.location.origin) {
+ // Our service worker won't work if PUBLIC_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 = `${process.env.PUBLIC_URL}/service-worker.js`;
if (isLocalhost) {
- // This is running on localhost. Lets check if a service worker still exists or not.
- checkValidServiceWorker(swUrl);
+ // 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.
navigator.serviceWorker.ready.then(() => {
console.log(
'This web app is being served cache-first by a service ' +
- 'worker. To learn more, visit https://goo.gl/SC7cgQ',
+ 'worker. To learn more, visit https://cra.link/PWA',
);
});
} else {
- // Is not local host. Just register service worker
- registerValidSW(swUrl);
+ // Is not localhost. Just register service worker
+ registerValidSW(swUrl, config);
}
});
}
}
-function registerValidSW(swUrl) {
+function registerValidSW(swUrl, 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 old content will have been purged and
- // the fresh content will have been added to the cache.
- // It's the perfect time to display a "New content is
- // available; please refresh." message in your web app.
- console.log('New content is available; please refresh.');
+ // 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 && 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 && config.onSuccess) {
+ config.onSuccess(registration);
+ }
}
}
};
@@ -81,14 +98,17 @@ function registerValidSW(swUrl) {
});
}
-function checkValidServiceWorker(swUrl) {
+function checkValidServiceWorker(swUrl, config) {
// Check if the service worker can be found. If it can't reload the page.
- fetch(swUrl)
+ 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 ||
- response.headers.get('content-type').indexOf('javascript') === -1
+ (contentType != null && contentType.indexOf('javascript') === -1)
) {
// No service worker found. Probably a different app. Reload the page.
navigator.serviceWorker.ready.then((registration) => {
@@ -98,7 +118,7 @@ function checkValidServiceWorker(swUrl) {
});
} else {
// Service worker found. Proceed as normal.
- registerValidSW(swUrl);
+ registerValidSW(swUrl, config);
}
})
.catch(() => {
@@ -110,8 +130,12 @@ function checkValidServiceWorker(swUrl) {
export function unregister() {
if ('serviceWorker' in navigator) {
- navigator.serviceWorker.ready.then((registration) => {
- registration.unregister();
- });
+ navigator.serviceWorker.ready
+ .then((registration) => {
+ registration.unregister();
+ })
+ .catch((error) => {
+ console.error(error.message);
+ });
}
}
diff --git a/yarn.lock b/yarn.lock
index e688bee..6520904 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -12703,6 +12703,18 @@ __metadata:
react-polls: ^1.2.0
react-scripts: 5.0.1
react-timeago: ^7.1.0
+ workbox-background-sync: ^6.4.2
+ workbox-broadcast-update: ^6.4.2
+ workbox-cacheable-response: ^6.4.2
+ workbox-core: ^6.4.2
+ workbox-expiration: ^6.4.2
+ workbox-google-analytics: ^6.4.2
+ workbox-navigation-preload: ^6.4.2
+ workbox-precaching: ^6.4.2
+ workbox-range-requests: ^6.4.2
+ workbox-routing: ^6.4.2
+ workbox-strategies: ^6.4.2
+ workbox-streams: ^6.4.2
languageName: unknown
linkType: soft
@@ -12976,7 +12988,7 @@ __metadata:
languageName: node
linkType: hard
-"workbox-background-sync@npm:6.5.4":
+"workbox-background-sync@npm:6.5.4, workbox-background-sync@npm:^6.4.2":
version: 6.5.4
resolution: "workbox-background-sync@npm:6.5.4"
dependencies:
@@ -12986,7 +12998,7 @@ __metadata:
languageName: node
linkType: hard
-"workbox-broadcast-update@npm:6.5.4":
+"workbox-broadcast-update@npm:6.5.4, workbox-broadcast-update@npm:^6.4.2":
version: 6.5.4
resolution: "workbox-broadcast-update@npm:6.5.4"
dependencies:
@@ -13040,7 +13052,7 @@ __metadata:
languageName: node
linkType: hard
-"workbox-cacheable-response@npm:6.5.4":
+"workbox-cacheable-response@npm:6.5.4, workbox-cacheable-response@npm:^6.4.2":
version: 6.5.4
resolution: "workbox-cacheable-response@npm:6.5.4"
dependencies:
@@ -13049,14 +13061,14 @@ __metadata:
languageName: node
linkType: hard
-"workbox-core@npm:6.5.4":
+"workbox-core@npm:6.5.4, workbox-core@npm:^6.4.2":
version: 6.5.4
resolution: "workbox-core@npm:6.5.4"
checksum: d973cc6c1c5fdbde7f6642632384c2e0de48f08228eb234db2c97a18a7e5422b483005767e7b447ea774abc0772dfc1edef2ef2b5df174df4d40ae61d4c49719
languageName: node
linkType: hard
-"workbox-expiration@npm:6.5.4":
+"workbox-expiration@npm:6.5.4, workbox-expiration@npm:^6.4.2":
version: 6.5.4
resolution: "workbox-expiration@npm:6.5.4"
dependencies:
@@ -13066,7 +13078,7 @@ __metadata:
languageName: node
linkType: hard
-"workbox-google-analytics@npm:6.5.4":
+"workbox-google-analytics@npm:6.5.4, workbox-google-analytics@npm:^6.4.2":
version: 6.5.4
resolution: "workbox-google-analytics@npm:6.5.4"
dependencies:
@@ -13078,7 +13090,7 @@ __metadata:
languageName: node
linkType: hard
-"workbox-navigation-preload@npm:6.5.4":
+"workbox-navigation-preload@npm:6.5.4, workbox-navigation-preload@npm:^6.4.2":
version: 6.5.4
resolution: "workbox-navigation-preload@npm:6.5.4"
dependencies:
@@ -13087,7 +13099,7 @@ __metadata:
languageName: node
linkType: hard
-"workbox-precaching@npm:6.5.4":
+"workbox-precaching@npm:6.5.4, workbox-precaching@npm:^6.4.2":
version: 6.5.4
resolution: "workbox-precaching@npm:6.5.4"
dependencies:
@@ -13098,7 +13110,7 @@ __metadata:
languageName: node
linkType: hard
-"workbox-range-requests@npm:6.5.4":
+"workbox-range-requests@npm:6.5.4, workbox-range-requests@npm:^6.4.2":
version: 6.5.4
resolution: "workbox-range-requests@npm:6.5.4"
dependencies:
@@ -13121,7 +13133,7 @@ __metadata:
languageName: node
linkType: hard
-"workbox-routing@npm:6.5.4":
+"workbox-routing@npm:6.5.4, workbox-routing@npm:^6.4.2":
version: 6.5.4
resolution: "workbox-routing@npm:6.5.4"
dependencies:
@@ -13130,7 +13142,7 @@ __metadata:
languageName: node
linkType: hard
-"workbox-strategies@npm:6.5.4":
+"workbox-strategies@npm:6.5.4, workbox-strategies@npm:^6.4.2":
version: 6.5.4
resolution: "workbox-strategies@npm:6.5.4"
dependencies:
@@ -13139,7 +13151,7 @@ __metadata:
languageName: node
linkType: hard
-"workbox-streams@npm:6.5.4":
+"workbox-streams@npm:6.5.4, workbox-streams@npm:^6.4.2":
version: 6.5.4
resolution: "workbox-streams@npm:6.5.4"
dependencies: