HTML Refresher and Detailed Study - Part 9
Last updated on 19 May 2026 Post series: Part 1 , Prev Part (8) , Post Series TOC Contents (sections and/or jump-links) Implementation of uppercase Echo Chat application with offline support using WebSockets and Service Worker Stage 1: Simple delayed uppercase Echo Chat server and client with WebSockets but without Service Worker Stage 1: Simple delayed uppercase Echo Chat server and client with WebSockets but without Service Worker Stage 2: Adding Service Worker Network First Caching (Offline App Shell) Stage 2: Adding Service Worker Network First Caching (Offline App Shell) Why have Pre-caching when we already have dynamic caching? Stage 2 Testing How to prevent Service Worker deleting another Service Worker's cache for projects having subfolders with separate Service Workers Adding network online/offline detection code (navigator.onLine) Stage 2: Further Testing Stage 3A: Offline Message Queuing with IndexedDB impleme...