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let savedPort = null;
let savedResultingClientId = null;
async function getTestingPage() {
const clientList = await self.clients.matchAll({ type: 'window', includeUncontrolled: true });
for (let c of clientList) {
if (c.url.endsWith('clients-get.https.html')) {
c.focus();
return c;
}
}
return null;
}
async function destroyResultingClient(testingPage) {
const destroyedPromise = new Promise(resolve => {
self.addEventListener('message', e => {
if (e.data.msg == 'resultingClientDestroyed') {
resolve();
}
}, {once: true});
});
testingPage.postMessage({ msg: 'destroyResultingClient' });
return destroyedPromise;
}
self.addEventListener('fetch', async (e) => {
let { resultingClientId } = e;
savedResultingClientId = resultingClientId;
if (e.request.url.endsWith('simple.html?fail')) {
e.waitUntil((async () => {
const testingPage = await getTestingPage();
await destroyResultingClient(testingPage);
testingPage.postMessage({ msg: 'resultingClientDestroyedAck',
resultingDestroyedClientId: savedResultingClientId });
})());
return;
}
e.respondWith(fetch(e.request));
});
self.addEventListener('message', (e) => {
let { msg, resultingClientId } = e.data;
e.waitUntil((async () => {
if (msg == 'getIsResultingClientUndefined') {
const client = await self.clients.get(resultingClientId);
let isUndefined = typeof client == 'undefined';
e.source.postMessage({ msg: 'getIsResultingClientUndefined',
isResultingClientUndefined: isUndefined });
return;
}
if (msg == 'getResultingClientId') {
e.source.postMessage({ msg: 'getResultingClientId',
resultingClientId: savedResultingClientId });
return;
}
})());
});
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