webtransport-document.https.sub.window.js

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This test has a WPT meta file that expects 5 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /connection-allowlist/tentative/webtransport-document.https.sub.window.html - WPT Dashboard Interop Dashboard

// META: script=/common/get-host-info.sub.js

//

// The following tests assume the policy

// `Connection-Allowlist: (response-origin

// "https://{{host}}:{{ports[webtransport-h3][0]}}")` has been set. The WPT

// WebTransport server runs on a different port than HTTPS, so the allowlist

// explicitly includes the same-host WebTransport origin.

const wt_port = '{{ports[webtransport-h3][0]}}';

function webtransport_test(host, expectation, description) {

  promise_test(async t => {

    const url = `https://${host}:${

        wt_port}/webtransport/handlers/custom-response.py?:status=200`;

    const wt = new WebTransport(url);

    const result = await wt.ready.then(() => {

      wt.close();

      return 'open';

    }, (e) => 'error');

    assert_equals(

        result, expectation,

        `WebTransport to ${host} should ${

            expectation === 'open' ? 'connect' : 'be blocked'}.`);

  }, description);

// Same-origin WebTransport should succeed (allowlisted via explicit pattern).

webtransport_test(

    '{{hosts[][]}}', 'open', 'Same-origin WebTransport succeeds.');

// Same-site but cross-origin subdomains should fail.

webtransport_test(

    '{{hosts[][www]}}', 'error',

    'Cross-origin same-site WebTransport (www) is blocked.');

webtransport_test(

    '{{hosts[][www1]}}', 'error',

    'Cross-origin same-site WebTransport (www1) is blocked.');

// Cross-site origins should fail.

webtransport_test(

    '{{hosts[alt][]}}', 'error', 'Cross-site WebTransport is blocked.');

webtransport_test(

    '{{hosts[alt][www]}}', 'error',

    'Cross-site WebTransport (www subdomain) is blocked.');