sizes-redirect-img.html

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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:
- /resource-timing/sizes-redirect-img.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

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

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

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

<script src="resources/sizes-helper.js"></script>

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

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

<script>

// Redirects for fetch() always apply CORS rules, whereas normal resources

// don't, so this test covers extra code paths beyond those covered by

// resource-timing-sizes-redirect.html.

const baseUrl = new URL('/resource-timing/resources/TAOResponse.py?tao=wildcard&img=true', location.href).href;

const expectedSize = 1010;

const hostInfo = get_host_info();

const redirectUrl = (redirectSourceOrigin, targetUrl) => {

  return redirectSourceOrigin +

    '/resource-timing/resources/redirect-cors.py?allow_origin=*&timing_allow_origin=*' +

    '&location=' + encodeURIComponent(targetUrl);

};

const verify_entry = entry => {

  checkSizeFields(entry, expectedSize, expectedSize + headerSize);

};

attribute_test(load.image, baseUrl,

  verify_entry,

  "PerformanceResourceTiming sizes redirect image - direct URL");

attribute_test(load.image,

  redirectUrl(hostInfo.HTTP_ORIGIN, baseUrl),

  verify_entry,

  "PerformanceResourceTiming sizes redirect image - same origin redirect");

attribute_test(load.image_cors,

  redirectUrl(hostInfo.HTTP_REMOTE_ORIGIN, baseUrl),

  verify_entry,

  "PerformanceResourceTiming sizes redirect image - cross origin redirect");

attribute_test(load.image_cors,

  redirectUrl(hostInfo.HTTP_REMOTE_ORIGIN,

    redirectUrl(hostInfo.HTTP_ORIGIN, baseUrl)),

  verify_entry,

  "PerformanceResourceTiming sizes redirect image - cross origin to same origin redirect");

attribute_test(load.image_cors,

  redirectUrl(hostInfo.HTTP_ORIGIN,

    redirectUrl(hostInfo.HTTP_REMOTE_ORIGIN,

      redirectUrl(hostInfo.HTTP_ORIGIN,

        baseUrl))),

  verify_entry,

  "PerformanceResourceTiming sizes redirect image - same origin to remote " +

  "origin to same origin redirect");

</script>