perf: optimize JavaScript bundles and GTM loading - Switch to Terser minification for better compression - Add service worker for caching static assets including GTM - Optimize GTM loading with timeout and DOM ready check - Better chunk splitting with vendor separation - Remove console logs in production
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15993914f1
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38
index.html
38
index.html
@ -33,16 +33,36 @@
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<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Montserrat:wght@400;500;600;700&display=swap" rel="stylesheet">
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<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Montserrat:wght@400;500;600;700&display=swap" rel="stylesheet">
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</noscript>
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</noscript>
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<!-- Google Tag Manager - Chargé de manière asynchrone -->
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<!-- Google Tag Manager - Chargé de manière optimisée -->
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<script>
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<script>
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// Defer GTM loading to improve initial page load
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// Charger GTM de manière non-bloquante avec timeout
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window.addEventListener('load', function() {
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(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
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new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
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j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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'https://www.googletagmanager.com/gtm.js?id='+i+dl;
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'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
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})(window,document,'script','dataLayer','GTM-5V6TCG4C');
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// Timeout pour éviter que GTM bloque indéfiniment
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});
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var timeout = setTimeout(function() {
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if (!w[l].gtmDidInit) {
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w[l].gtmDidInit = true;
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f.parentNode.removeChild(j);
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}
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}, 3000); // 3 secondes timeout
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j.onload = function() {
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clearTimeout(timeout);
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w[l].gtmDidInit = true;
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};
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// Attendre que le DOM soit prêt avant d'ajouter GTM
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if (d.readyState === 'loading') {
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d.addEventListener('DOMContentLoaded', function() {
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f.parentNode.insertBefore(j,f);
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});
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} else {
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f.parentNode.insertBefore(j,f);
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}
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})(window,document,'script','dataLayer','GTM-5V6TCG4C');
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</script>
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</script>
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<!-- End Google Tag Manager -->
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<!-- End Google Tag Manager -->
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</head>
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</head>
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76
public/sw.js
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76
public/sw.js
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@ -0,0 +1,76 @@
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// Service Worker pour mettre en cache les ressources statiques
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const CACHE_NAME = 'portfolio-v1';
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const STATIC_CACHE = 'portfolio-static-v1';
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// Ressources à mettre en cache immédiatement
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const STATIC_ASSETS = [
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'/',
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'/favicon.ico',
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'/favicon.svg',
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'/robots.txt',
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// GTM sera mis en cache lors de la première visite
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];
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// Installer le service worker
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self.addEventListener('install', (event) => {
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event.waitUntil(
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caches.open(STATIC_CACHE).then((cache) => {
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return cache.addAll(STATIC_ASSETS);
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})
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);
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// Forcer l'activation immédiate
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self.skipWaiting();
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});
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// Activer le service worker
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self.addEventListener('activate', (event) => {
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event.waitUntil(
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caches.keys().then((cacheNames) => {
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return Promise.all(
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cacheNames.map((cacheName) => {
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if (cacheName !== STATIC_CACHE && cacheName !== CACHE_NAME) {
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return caches.delete(cacheName);
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}
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})
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);
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})
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);
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self.clients.claim();
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});
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// Intercepter les requêtes
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self.addEventListener('fetch', (event) => {
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const url = new URL(event.request.url);
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// Stratégie Cache First pour les ressources statiques
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if (event.request.method === 'GET' &&
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(url.pathname.match(/\.(css|js|png|jpg|jpeg|webp|svg|woff|woff2|ttf|eot)$/i) ||
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url.hostname === 'www.googletagmanager.com' ||
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url.hostname === 'fonts.googleapis.com' ||
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url.hostname === 'fonts.gstatic.com')) {
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event.respondWith(
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caches.match(event.request).then((cachedResponse) => {
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if (cachedResponse) {
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return cachedResponse;
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}
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return fetch(event.request).then((response) => {
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// Ne mettre en cache que les réponses réussies
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if (response.status === 200 && response.type === 'basic') {
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const responseClone = response.clone();
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caches.open(CACHE_NAME).then((cache) => {
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cache.put(event.request, responseClone);
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});
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}
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return response;
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}).catch(() => {
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// Fallback pour les ressources critiques
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if (url.pathname.includes('gtm.js')) {
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return new Response('', { status: 404 });
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}
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});
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})
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);
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}
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});
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38
src/App.tsx
38
src/App.tsx
@ -5,6 +5,7 @@ import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
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import { createBrowserRouter, RouterProvider } from "react-router-dom";
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import { createBrowserRouter, RouterProvider } from "react-router-dom";
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import { lazy, Suspense } from "react";
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import { lazy, Suspense } from "react";
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import { ThemeProvider } from "./contexts/ThemeContext";
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import { ThemeProvider } from "./contexts/ThemeContext";
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import { useServiceWorker } from "./hooks/useServiceWorker";
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// Lazy load pages and heavy components for better performance
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// Lazy load pages and heavy components for better performance
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const Index = lazy(() => import("./pages/Index"));
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const Index = lazy(() => import("./pages/Index"));
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@ -38,21 +39,26 @@ const router = createBrowserRouter([
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},
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},
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]);
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]);
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const App = () => (
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const App = () => {
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<QueryClientProvider client={queryClient}>
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// Enregistrer le service worker pour la mise en cache
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<TooltipProvider>
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useServiceWorker();
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<ThemeProvider>
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<Suspense fallback={null}>
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return (
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<ParticlesBackground />
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<QueryClientProvider client={queryClient}>
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</Suspense>
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<TooltipProvider>
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<Toaster />
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<ThemeProvider>
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<Sonner />
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<Suspense fallback={null}>
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<Suspense fallback={<PageLoader />}>
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<ParticlesBackground />
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<RouterProvider router={router} />
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</Suspense>
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</Suspense>
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<Toaster />
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</ThemeProvider>
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<Sonner />
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</TooltipProvider>
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<Suspense fallback={<PageLoader />}>
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</QueryClientProvider>
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<RouterProvider router={router} />
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);
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</Suspense>
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</ThemeProvider>
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</TooltipProvider>
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</QueryClientProvider>
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);
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};
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export default App;
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export default App;
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40
src/hooks/useServiceWorker.ts
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40
src/hooks/useServiceWorker.ts
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@ -0,0 +1,40 @@
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import { useEffect } from 'react';
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export const useServiceWorker = () => {
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useEffect(() => {
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if ('serviceWorker' in navigator && process.env.NODE_ENV === 'production') {
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// Enregistrer le service worker après un petit délai pour ne pas bloquer le rendu
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const registerSW = async () => {
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try {
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const registration = await navigator.serviceWorker.register('/sw.js', {
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scope: '/'
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});
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registration.addEventListener('updatefound', () => {
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const newWorker = registration.installing;
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if (newWorker) {
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newWorker.addEventListener('statechange', () => {
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if (newWorker.state === 'installed' && navigator.serviceWorker.controller) {
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// Nouvelle version disponible
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console.log('New service worker available, consider refreshing the page');
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}
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});
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}
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});
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console.log('Service Worker registered successfully');
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} catch (error) {
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console.log('Service Worker registration failed:', error);
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}
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};
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// Attendre que la page soit interactive avant d'enregistrer le SW
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if (document.readyState === 'loading') {
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document.addEventListener('DOMContentLoaded', registerSW);
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} else {
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// Petit délai pour ne pas bloquer le rendu initial
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setTimeout(registerSW, 100);
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}
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}
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}, []);
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};
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@ -24,17 +24,30 @@ export default defineConfig(({ mode }) => ({
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},
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},
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build: {
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build: {
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// Optimisations pour la production
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// Optimisations pour la production
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minify: 'esbuild', // Utiliser esbuild au lieu de terser (plus rapide, déjà inclus)
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minify: 'terser', // Utiliser Terser pour une meilleure compression que esbuild
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target: 'esnext', // Code plus moderne et plus petit
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target: 'esnext', // Code plus moderne et plus petit
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cssMinify: true,
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cssMinify: 'esbuild', // Garder esbuild pour CSS (plus rapide)
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// Chunking optimal pour de meilleures performances
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// Chunking optimal pour de meilleures performances
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rollupOptions: {
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rollupOptions: {
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output: {
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output: {
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// Split vendors pour améliorer le cache
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// Split vendors pour améliorer le cache et réduire les tailles
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manualChunks: {
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manualChunks: (id) => {
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'react-vendor': ['react', 'react-dom', 'react-router-dom'],
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// React et core
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'ui-vendor': ['framer-motion', 'lucide-react'],
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if (id.includes('react') || id.includes('react-dom') || id.includes('react-router')) {
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'particles': ['@tsparticles/react', '@tsparticles/slim', '@tsparticles/engine'],
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return 'react-vendor';
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}
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// UI libraries
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if (id.includes('framer-motion') || id.includes('lucide-react') || id.includes('@radix-ui')) {
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return 'ui-vendor';
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}
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// Particles (lazy loaded anyway)
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if (id.includes('@tsparticles') || id.includes('particles')) {
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return 'particles';
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}
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// Autres node_modules dans un chunk séparé
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if (id.includes('node_modules')) {
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return 'vendor';
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}
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},
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},
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// Nommer les chunks de manière cohérente pour le cache
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// Nommer les chunks de manière cohérente pour le cache
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chunkFileNames: 'assets/js/[name]-[hash].js',
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chunkFileNames: 'assets/js/[name]-[hash].js',
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@ -43,12 +56,23 @@ export default defineConfig(({ mode }) => ({
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},
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},
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},
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},
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// Optimisation des assets
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// Optimisation des assets
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assetsInlineLimit: 4096, // Images < 4kb seront inline en base64
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assetsInlineLimit: 2048, // Réduire pour inliner moins d'assets
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chunkSizeWarningLimit: 500, // Limite plus stricte pour éviter les gros bundles
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chunkSizeWarningLimit: 300, // Limite encore plus stricte
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sourcemap: false, // Désactiver les sourcemaps en production
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sourcemap: false, // Désactiver les sourcemaps en production
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// Compression CSS supplémentaire
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// Compression CSS supplémentaire
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cssCodeSplit: true,
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cssCodeSplit: true,
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// Minification supplémentaire
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// Minification supplémentaire avec Terser
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terserOptions: {
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compress: {
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drop_console: true, // Supprimer les console.log en production
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drop_debugger: true,
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pure_funcs: ['console.log', 'console.info', 'console.debug'],
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},
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mangle: {
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safari10: true,
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},
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},
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// Optimisations supplémentaires
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reportCompressedSize: true,
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reportCompressedSize: true,
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},
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},
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}));
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}));
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