document-base-url-about-srcdoc.https.window.js

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This WPT test may be referenced by the following Test IDs:
- /html/infrastructure/urls/terminology-0/document-base-url-about-srcdoc.https.window.html - WPT Dashboard Interop Dashboard

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

// Load about:srcdoc in a sandboxed iframe. Check the document.baseURI is

// correct.

const runTest = (description, iframe_sandbox) => {

  promise_test(async test => {

    const iframe = document.createElement("iframe");

    iframe.sandbox = iframe_sandbox;

    iframe.srcdoc = `

      <script>

        parent.postMessage(document.baseURI, '*');

      </scr`+`ipt>

`;

    const child_base_uri = new Promise(r => onmessage = e => r(e.data));

    document.body.appendChild(iframe);

    // [spec]: https://html.spec.whatwg.org/C/#fallback-base-url

    // Step 1: If document is an iframe srcdoc document, then return the

    //         document base URL of document's browsing context's container

    //         document.

    assert_equals(await child_base_uri, document.baseURI);

  }, description);

onload = () => {

  runTest("allow-same-origin", "allow-scripts allow-same-origin");

  runTest("disallow-same-origin", "allow-scripts");