From dce608ae1b675cfe13e6e4264fddb9933396c8a6 Mon Sep 17 00:00:00 2001
From: Jeff Emmett <jeffemmett@gmail.com>
Date: Wed, 25 Mar 2026 18:02:14 -0700
Subject: [PATCH] fix: cache-bust sw.js registration + no-cache header for
 SW/manifest

- Add ?v=4 to all SW registration URLs to bypass stale CF CDN cache
- Set Cache-Control: no-cache for sw.js and manifest.json so future
  SW updates are never blocked by CDN caching

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 server/shell.ts           | 6 +++---
 website/canvas.html       | 2 +-
 website/create-space.html | 2 +-
 website/index.html        | 2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/server/shell.ts b/server/shell.ts
index c3e5a02..c2457dc 100644
--- a/server/shell.ts
+++ b/server/shell.ts
@@ -278,7 +278,7 @@ export function renderShell(opts: ShellOptions): string {
     import '/shell.js';
     // ── Service worker registration ──
     if ("serviceWorker" in navigator && location.hostname !== "localhost") {
-      navigator.serviceWorker.register("/sw.js").catch(() => {});
+      navigator.serviceWorker.register("/sw.js?v=4").catch(() => {});
     }
     // ── Install prompt capture ──
     window.addEventListener("beforeinstallprompt", (e) => {
@@ -2113,7 +2113,7 @@ export function renderModuleLanding(opts: ModuleLandingOptions): string {
   <script type="module">
     import '/shell.js';
     if ("serviceWorker" in navigator && location.hostname !== "localhost") {
-      navigator.serviceWorker.register("/sw.js").catch(() => {});
+      navigator.serviceWorker.register("/sw.js?v=4").catch(() => {});
     }
     document.querySelector('rstack-app-switcher')?.setModules(${moduleListJSON});
     try {
@@ -2448,7 +2448,7 @@ export function renderSubPageInfo(opts: SubPageInfoOptions): string {
   <script type="module">
     import '/shell.js';
     if ("serviceWorker" in navigator && location.hostname !== "localhost") {
-      navigator.serviceWorker.register("/sw.js").catch(() => {});
+      navigator.serviceWorker.register("/sw.js?v=4").catch(() => {});
     }
     document.querySelector('rstack-app-switcher')?.setModules(${moduleListJSON});
     try {
diff --git a/website/canvas.html b/website/canvas.html
index 3a17634..80fd41a 100644
--- a/website/canvas.html
+++ b/website/canvas.html
@@ -2613,7 +2613,7 @@
 
 			// Register service worker for offline support
 			if ("serviceWorker" in navigator && window.location.hostname !== "localhost") {
-				navigator.serviceWorker.register("/sw.js").then((reg) => {
+				navigator.serviceWorker.register("/sw.js?v=4").then((reg) => {
 					console.log("[Canvas] Service worker registered, scope:", reg.scope);
 				}).catch((err) => {
 					console.warn("[Canvas] Service worker registration failed:", err);
diff --git a/website/create-space.html b/website/create-space.html
index 68285c6..d029dc9 100644
--- a/website/create-space.html
+++ b/website/create-space.html
@@ -300,7 +300,7 @@
 
 		<script type="module">
 			if ("serviceWorker" in navigator && location.hostname !== "localhost") {
-				navigator.serviceWorker.register("/sw.js").catch(() => {});
+				navigator.serviceWorker.register("/sw.js?v=4").catch(() => {});
 			}
 			import { RStackIdentity } from "@shared/components/rstack-identity";
 			import { RStackAppSwitcher } from "@shared/components/rstack-app-switcher";
diff --git a/website/index.html b/website/index.html
index e678eab..31a8fbe 100644
--- a/website/index.html
+++ b/website/index.html
@@ -523,7 +523,7 @@
 
 		<script type="module">
 			if ("serviceWorker" in navigator && location.hostname !== "localhost") {
-				navigator.serviceWorker.register("/sw.js").catch(() => {});
+				navigator.serviceWorker.register("/sw.js?v=4").catch(() => {});
 			}
 			import { RStackIdentity, isAuthenticated, getAccessToken } from "@shared/components/rstack-identity";
 			import { RStackAppSwitcher } from "@shared/components/rstack-app-switcher";