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esprehn/test.html

Created August 5, 2020 06:13
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test.html
<!doctype html>
<script>
function a() {
return new Promise((resolve, reject) => {
setTimeout(() => reject(new Error('test')), 100);
});
}
function b() {
return new Promise((resolve, reject) => {
setTimeout(() => resolve(), 100);
});
}
b().then(() => a());
onunhandledrejection = (e) => {
console.log(e.reason.stack);
};
</script>
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