' + '

Pulling the newest version\u2026

' + '

CGRAM is refreshing itself from the server. This only takes a moment.

' + ''; document.body.appendChild(d); } // Genuinely-stale bundle (chunk 404s): drop the service worker + Cache // Storage so the reload pulls the fresh build. Session is UNTOUCHED // (cookies / localStorage / IndexedDB are never cleared here). Never // triggers the destructive full-reset route. Once per debounce window. function healStaleBundle() { if (!navigator.onLine) return; if (recentlyRecovered()) return; // already tried this window → don't loop markRecovered(); showOverlay(); var done = false; function reload() { if (done) return; done = true; window.location.reload(); } var step = Promise.resolve(); try { if (navigator.serviceWorker) { step = navigator.serviceWorker.getRegistrations().then(function (rs) { return Promise.all(rs.map(function (r) { return r.unregister(); })); })["catch"](function () {}); } } catch (e) {} step.then(function () { if (window.caches) { return caches.keys().then(function (ks) { return Promise.all(ks.map(function (k) { return caches["delete"](k); })); }); } })["catch"](function () {}) .then(function () { setTimeout(reload, 400); }); setTimeout(reload, 4000); // never hang on the overlay } // Boot-timeout backstop: a plain reload that KEEPS the warm precache (so it // is fast, not a cold re-download) and the session. If a stale bundle is // the real cause, the reload re-hits the chunk-404 path above and heals // properly. Never clears caches, never signs out. Once per debounce window. function softReload() { if (!navigator.onLine) return; if (recentlyRecovered()) return; // already tried → don't loop, don't escalate markRecovered(); window.location.reload(); } // 1) A /_next/ chunk failed to load, or a dynamic import / chunk error → // the bundle is genuinely stale. window.addEventListener("error", function (e) { if (window.__cgramBooted || !navigator.onLine) return; if (document.visibilityState === "hidden") return; // not a visible blank screen var t = e && e.target; var badChunk = t && t.tagName === "SCRIPT" && t.src && t.src.indexOf("/_next/") !== -1; var msg = (e && e.message) || ""; var chunkErr = /ChunkLoadError|Loading chunk|dynamically imported module|module script failed/i.test(msg); if (badChunk || chunkErr) healStaleBundle(); }, true); // 2) React never booted within the grace window AND the screen is really // blank → one non-destructive reload. Never clears the cache and never // signs the user out; a slow launch must not cost the session. setTimeout(function () { if (window.__cgramBooted || !navigator.onLine) return; if (document.visibilityState === "hidden") return; if (!looksBlank()) return; // rendered content = healthy, just slow → leave it softReload(); }, GRACE_MS); } catch (e) { /* the watchdog must never throw */ } })();

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