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self.addEventListener("activate", e => {
e.waitUntil(self.clients.claim());
});
self.addEventListener("message", e => {
switch (e.data.type) {
case "Fetch":
e.waitUntil(
fetch(e.data.url)
.then(() => {
// Send success message back to source client
e.source.postMessage({ type: "FetchResult", success: true });
})
.catch(_ => {
// Send error message back to source client
e.source.postMessage({
type: "FetchResult",
success: false,
});
})
);
break;
}
});