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var p = new Promise(function (resolve, reject) {
// This causes a runnable to be queued.
reject(new Error());
postMessage("loaded");
// This prevents that runnable from running until the window calls terminate(),
// at which point the worker goes into the Canceling state and then an
// HoldWorker() is attempted, which fails, which used to result in
// multiple calls to the error reporter, one after the worker's context had
// been GCed.
while (true) {}
});