<!DOCTYPE html>
<script src="include.js"></script>
<script>
    asyncTest(done => {
        const timeout_milliseconds = 10;
        const test_start_time = performance.now();
        const signal = AbortSignal.timeout(timeout_milliseconds);
        signal.onabort = (event) => {
            const abort_event_time = performance.now();
            const time_taken_milliseconds = abort_event_time - test_start_time;
            println(`Time passed before abort event fired is at least ${timeout_milliseconds} mi