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Test Info:

<!DOCTYPE html>
<meta charset="utf-8" />
<title>Resource Timing ignores resources with data: URIs</title>
<link rel="author" title="Google" href="" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/resource-loaders.js"></script>
<img src="data:image/gif;base64,R0lGODlhAQABAIAAAOTm7AAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw=="></img>
promise_test(async t => {
const promise = new Promise(resolve => {
new PerformanceObserver(t.step_func(list => {
const entries = list.getEntries();
const dataEntries = entries.filter(e =>'data:'));
assert_equals(dataEntries.length, 0, 'There must be no entry for `data: URL`.');
const blueEntries = entries.filter(e =>'blue.png'));
if (blueEntries.length) {
// We can finish the test once we see the entry with blue.png.
})).observe({entryTypes: ['resource']});
// Wait until the document is loaded.
await new Promise(resolve => {
window.addEventListener('load', resolve);
// Add the blue.png image after document is loaded to ensure we've received
// all of the previous Resource Timing entries.
return promise;
}, 'Resources with data: URIs must not be surfaced in Resource Timing');