content-encoding.https.html

Enable keyboard shortcuts

This test has a WPT meta file that expects 25 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /resource-timing/content-encoding.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<head>

  <meta charset="utf-8">

  <title>contentEncoding in resource timing</title>

  <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />

  <link rel="help" href="https://www.w3.org/TR/resource-timing-2/#sec-performanceresourcetiming" />

  <script src="/common/get-host-info.sub.js"></script>

  <script src="/resources/testharness.js"></script>

  <script src="/resources/testharnessreport.js"></script>

  <script src="resources/entry-invariants.js"></script>

  <script src="resources/resource-loaders.js"></script>

  <script>

    const { ORIGIN, REMOTE_ORIGIN } = get_host_info();

    const run_same_origin_test = (path, contentEncoding) => {

      const url = new URL(path, ORIGIN);

      attribute_test(

        fetch, url,

        entry => {

          assert_equals(entry.contentEncoding, contentEncoding,

            `run_same_origin_test failed, unexpected contentEncoding value.`);

});

    run_same_origin_test("/resource-timing/resources/compressed-data.py?content_encoding=dcb", "dcb");

    run_same_origin_test("/resource-timing/resources/compressed-data.py?content_encoding=dcz", "dcz");

    run_same_origin_test("/resource-timing/resources/gzip_xml.py", "gzip");

    run_same_origin_test("/resource-timing/resources/foo.text.br", "br");

    run_same_origin_test("/resource-timing/resources/foo.text.gz", "gzip");

    run_same_origin_test("/resource-timing/resources/foo.text.zst", "zstd");

    run_same_origin_test("/resource-timing/resources/compressed-js.py?content_encoding=deflate", "deflate");

    run_same_origin_test("/resource-timing/resources/compressed-js.py?content_encoding=gzip", "gzip");

    run_same_origin_test("/resource-timing/resources/compressed-js.py?content_encoding=identity", "identity");

    // Unrecognized content encoding value should be transformed to "unknown".

    run_same_origin_test("/resource-timing/resources/compressed-js.py?content_encoding=unrecognizedname", "unknown");

    const run_cross_origin_test = (path) => {

      const url = new URL(path, REMOTE_ORIGIN);

      attribute_test(

        load.xhr_async, url,

        entry => {

          assert_equals(entry.contentEncoding, "",

            `run_cross_origin_test failed, contentEncoding should be empty.`);

});

    run_cross_origin_test("/resource-timing/resources/compressed-data.py?content_encoding=dcb");

    run_cross_origin_test("/resource-timing/resources/gzip_xml.py");

    run_cross_origin_test("/resource-timing/resources/compressed-data.py?content_encoding=dcz");

    run_cross_origin_test("/resource-timing/resources/foo.text.br");

    run_cross_origin_test("/resource-timing/resources/foo.text.gz");

    run_cross_origin_test("/resource-timing/resources/foo.text.zst");

    run_cross_origin_test("/resource-timing/resources/compressed-js.py?content_encoding=deflate");

    run_cross_origin_test("/resource-timing/resources/compressed-js.py?content_encoding=gzip");

    const run_cross_origin_allowed_test = (path, contentEncoding) => {

      const url = new URL(path, REMOTE_ORIGIN);

      url.searchParams.set("allow_origin", ORIGIN);

      attribute_test(

        load.xhr_async, url,

        entry => {

          assert_equals(entry.contentEncoding, contentEncoding,

            `run_cross_origin_allowed_test failed, unexpected contentEncoding value.`);

});

    run_cross_origin_allowed_test("/resource-timing/resources/compressed-data.py?content_encoding=dcb", "dcb");

    run_cross_origin_allowed_test("/resource-timing/resources/compressed-data.py?content_encoding=dcz", "dcz");

    run_cross_origin_allowed_test("/resource-timing/resources/gzip_xml.py", "gzip");

    run_cross_origin_allowed_test("/resource-timing/resources/compressed-js.py?content_encoding=deflate", "deflate");

    run_cross_origin_allowed_test("/resource-timing/resources/compressed-js.py?content_encoding=gzip", "gzip");

    // Content-Encoding for iframes is empty when cross origin redirects are present.

    const multiRedirect = new URL(`${ORIGIN}/resource-timing/resources/multi_redirect.py`);

    multiRedirect.searchParams.append("page_origin", ORIGIN);

    multiRedirect.searchParams.append("cross_origin", REMOTE_ORIGIN);

    multiRedirect.searchParams.append("final_resource", "/resource-timing/resources/compressed-js.py?content_encoding=gzip");

    attribute_test(load.iframe, multiRedirect, (entry) => {

      assert_equals(entry.contentEncoding, "",

        `content-encoding should be empty for iframes having cross origin redirects`);

});

    // Content-Encoding for iframes is exposed for same origin redirects.

    const redirectCORS = new URL(`${ORIGIN}/resource-timing/resources/redirect-cors.py`);

    const dest = `${ORIGIN}/resource-timing/resources/compressed-js.py?content_encoding=gzip`;

    redirectCORS.searchParams.append("location", dest)

    attribute_test(load.iframe, redirectCORS, (entry) => {

      assert_equals(entry.contentEncoding, "gzip",

        `content-encoding should be exposed for iframes having only same origin redirects`);

});

  </script>

</head>

<body>

  <h1>

    Description</h1>

<p>

    This test validates contentEncoding in resource timing.</p>

</body>

</html>