start playing with 0.15 bundle format

test_template/assets/mini-coi.js

@@ -0,0 +1,32 @@
+/*! coi-serviceworker v0.1.7 - Guido Zuidhof and contributors, licensed under MIT */
+/*! mini-coi - Andrea Giammarchi and contributors, licensed under MIT */
+/** FEATURE DETECTION VERSION - COMPATIBLE WITH SERVERS THAT DO NOT SUPPORT COI */
+(({ document: d, navigator: { serviceWorker: s } }) => {
+  if (d) {
+    try { new SharedArrayBuffer(4, { maxByteLength: 8 }) }
+    catch (_) {
+      const { currentScript: c } = d;
+      s.register(c.src, { scope: c.getAttribute('scope') || '.' }).then(r => {
+        r.addEventListener('updatefound', () => location.reload());
+        if (r.active && !s.controller) location.reload();
+      });
+    }
+  }
+  else {
+    addEventListener('install', () => skipWaiting());
+    addEventListener('activate', e => e.waitUntil(clients.claim()));
+    addEventListener('fetch', e => {
+      const { request: r } = e;
+      if (r.cache === 'only-if-cached' && r.mode !== 'same-origin') return;
+      e.respondWith(fetch(r).then(r => {
+        const { body, status, statusText } = r;
+        if (!status || status > 399) return r;
+        const h = new Headers(r.headers);
+        h.set('Cross-Origin-Opener-Policy', 'same-origin');
+        h.set('Cross-Origin-Embedder-Policy', 'require-corp');
+        h.set('Cross-Origin-Resource-Policy', 'cross-origin');
+        return new Response(status == 204 ? null : body, { status, statusText, headers: h });
+      }));
+    });
+  }
+})(self);