permissions/edge-cases.https.html

<!DOCTYPE html>
<meta charset="utf-8" />
<title>Permissions API - Test invalid permission name</title>
<link rel="help" href="https://www.w3.org/TR/permissions/" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>

<body>
    <script>
        "use strict";

        promise_test(async (t) => {
            await promise_rejects_js(
                t,
                TypeError,
                navigator.permissions.query({ name: "not-a-real-permission" }),
                "Unsupported permission name should reject with TypeError"
            );
        }, "Query with an unsupported name rejects with TypeError");
    </script>
</body>