self.GLOBAL = { isWindow: () => false, isWorker: () => false, isShadowRealm: () => false, }; self.addEventListener('message', async event => { if (event.data.op === 'get-cookies') { const workerCookies = await cookieStore.getAll(); event.ports[0].postMessage({ workerCookies }, { domain: event.origin, }); } });