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export function checkFromESM(ok, is, finish) {
let worker = new ChromeWorker("esm_url_worker.js");
worker.onmessage = function (event) {
if (event.data.type == "finish") {
finish();
} else if (event.data.type == "url") {
URL.revokeObjectURL(event.data.url);
} else if (event.data.type == "status") {
ok(event.data.status, event.data.msg);
}
};
worker.onerror = function (event) {
is(event.target, worker);
ok(false, "Worker had an error: " + event.data);
worker.terminate();
finish();
};
worker.postMessage(0);
}