chromium/third_party/blink/web_tests/external/wpt/permissions-policy/reporting/xr-report-only.https.html

<!DOCTYPE html>
<html>
  <head>
    <script src='/resources/testharness.js'></script>
    <script src='/resources/testharnessreport.js'></script>
  </head>
  <body>
    <script>
const check_report_format = ([reports, observer]) => {
  const report = reports[0];
  assert_equals(report.type, "permissions-policy-violation");
  assert_equals(report.url, document.location.href);
  assert_equals(report.body.featureId, "xr-spatial-tracking");
  assert_equals(report.body.sourceFile, document.location.href);
  assert_equals(typeof report.body.lineNumber, "number");
  assert_equals(typeof report.body.columnNumber, "number");
  assert_equals(report.body.disposition, "report");
};

promise_test(async t => {
  const report = new Promise(resolve => {
    new ReportingObserver((reports, observer) => resolve([reports, observer]),
                          {types: ['permissions-policy-violation']}).observe();
  });
  try {
    let supported = await navigator.xr.isSessionSupported('immersive-vr');
  } catch (err) {
    // IsSessionSupported should only throw with a permissions policy violation;
    // however, inline does not trigger the permissions policy,
    // so immersive-vr must be used.
    assert_unreached("isSessionSupported should not throw in ReportOnly mode");
  }
  check_report_format(await report);
}, "XR report only mode");
    </script>
  </body>
</html>