diff --git a/CHANGES.md b/CHANGES.md
index da273a6..d78ae7d 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -2,6 +2,9 @@
 
 ## CHANGES
 
+v1.8.12
+- Loading: Fixes embed 'Purge Cache + Reload', ensure '?serveIndex=1' is always set on all service worker loading
+
 v1.8.11
 
 - Loading: Use default html index, avoid custom html injection (via wabac.js 2.16.12)
diff --git a/package.json b/package.json
index 3ce304b..7041615 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "replaywebpage",
   "productName": "ReplayWeb.page",
-  "version": "1.8.11",
+  "version": "1.8.12",
   "description": "Serverless Web Archive Replay",
   "repository": "https://github.com/webrecorder/replayweb.page",
   "homepage": "https://replayweb.page/",
diff --git a/src/appmain.ts b/src/appmain.ts
index 932f94a..d8a6ba4 100644
--- a/src/appmain.ts
+++ b/src/appmain.ts
@@ -447,6 +447,7 @@ export class ReplayWebApp extends LitElement {
     if (this.useRuffle) {
       qp.set("injectScripts", "ruffle/ruffle.js");
     }
+    qp.set("serveIndex", "1");
     query = qp.toString();
     if (query.length) {
       name += "?" + query;
diff --git a/src/sw.js b/src/sw.js
new file mode 100644
index 0000000..117f1e6
--- /dev/null
+++ b/src/sw.js
@@ -0,0 +1,29 @@
+import INDEX_HTML from "../index.html";
+
+import { SWReplay } from "@webrecorder/wabac/src/swmain";
+
+import { WorkerLoader } from "@webrecorder/wabac/src/loaders";
+
+if (self.registration) {
+  const staticData = new Map();
+
+  const prefix = self.registration.scope;
+
+  staticData.set(prefix, { type: "text/html", content: INDEX_HTML });
+  staticData.set(prefix + "index.html", {
+    type: "text/html",
+    content: INDEX_HTML,
+  });
+
+  const sp = new URLSearchParams(self.location.search);
+
+  const defaultConfig = {};
+
+  if (sp.get("ruffle") == "1") {
+    defaultConfig.injectScripts = ["ruffle/ruffle.js"];
+  }
+
+  self.sw = new SWReplay({ staticData, defaultConfig });
+} else {
+  new WorkerLoader(self);
+}