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let port;
onmessage = async e => {
await self.clients.claim();
port = e.data.port;
port.postMessage("Ready");
}
onfetch = e => {
const request = e.request;
if (port && request.url.endsWith(".jpg")) {
port.postMessage({ type: "fetch", info: {
url : request.url,
destination : request.destination,
mode : request.mode,
redirect : request.redirect,
referrerPolicy : request.referrerPolicy,
credentials : request.credentials
}});
}
}