javascript-url-referrer.window.js

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This test has a WPT meta file that expects 2 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /html/browsers/browsing-the-web/navigating-across-documents/javascript-url-referrer.window.html - WPT Dashboard Interop Dashboard

// META: script=../resources/helpers.js

// META: title=javascript: URL navigation to a string must create a document whose referrer is the navigation initiator

const originalURL = location.href;

const testCases = [

  ["unsafe-url", location.href],

  ["origin", self.origin + "/"],

  ["no-referrer", ""]

];

for (const [referrerPolicyForStartingWindowCreation, expectedReferrer] of testCases) {

  promise_test(async (t) => {

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

    meta.name = "referrer";

    meta.content = referrerPolicyForStartingWindowCreation;

    t.add_cleanup(() => meta.remove());

    document.head.append(meta);

    const w = await openWindow("/common/blank.html", t);

    const originalReferrer = w.document.referrer;

    assert_equals(originalReferrer, expectedReferrer,

      "Sanity check: opened window's referrer is set correctly");

    // Mess with the current document's URL so that the initiator URL is different. Then, if that

    // shows up as the javascript: URL document's referrer, we know the navigation initiator's URL is

    // being used as the referrer, which is incorrect.

    history.replaceState(undefined, "", "/incorrect-referrer.html");

    t.add_cleanup(() => history.replaceState(undefined, "", originalURL));

    w.location.href = `javascript:'a string<script>opener.postMessage(document.referrer, "*");</script>'`;

    const referrer = await waitForMessage(w);

    assert_equals(referrer, originalReferrer,

      "javascript: URL-created document's referrer equals the previous document's referrer");

  }, `${referrerPolicyForStartingWindowCreation} referrer policy used to create the starting page`);