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content / test / data / stale-while-revalidate.html [blame]
<script>
function wait25ms() {
return new Promise(resolve => {
setTimeout(() => {
resolve();
}, 25);
});
}
// runTest() will be called by the browser test.
async function runTest() {
const url = 'stale-script.js';
const response = await fetch(url).then(r => r.text());
const response2 = await fetch(url).then(r => r.text());
while(true) {
const revalidation_check = await fetch('stale-script.js');
if (performance.getEntriesByName(new URL(url, document.location)).length == 2) {
document.title = "Pass";
break;
}
await wait25ms();
}
}
</script>