share-file-url-with-base-tag.https.html

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This WPT test may be referenced by the following Test IDs:
- /web-share/share-file-url-with-base-tag.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

  <head>

    <meta charset="utf-8" />

    <title>WebShare Test: Share with a file URL and a base tag</title>

    <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>

  </head>

  <body>

    <script>

      // Dynamically add a <base> tag after scripts have loaded.

      const base = document.createElement('base');

      base.href = 'file:///';

      document.head.appendChild(base);

      test(() => {

        assert_false(

          navigator.canShare({ url: "file:///etc/passwd" }),

          "file URL should not be allowed even with a file: base URL"

);

      }, "canShare() rejects file:// URLs even with a file: base URL");

      promise_test(async t => {

        await test_driver.bless();

        const promise = navigator.share({ url: "file:///etc/passwd" });

        return promise_rejects_js(t, TypeError, promise);

      }, "share() rejects file:// URLs even with a file: base URL");

      promise_test(async t => {

        await test_driver.bless();

        // A relative URL "passwd" resolved against "file:///" becomes "file:///passwd".

        // This should also be rejected.

        const promise = navigator.share({ url: "passwd" });

        return promise_rejects_js(t, TypeError, promise);

      }, "share() rejects relative URLs that resolve to file:// scheme");

    </script>

  </body>

</html>