https://github.com/web-platform-tests/wpt
Raw File
Tip revision: 709a9f22fc786f9097802ef943478e2362c55300 authored by Jonathon Kereliuk on 20 March 2018, 17:38:10 UTC
update docs
Tip revision: 709a9f2
cross_origin.html
<!DOCTYPE html>
<head>
    <meta charset='utf-8' />
    <script src="/resources/testharness.js"></script>
    <script src='/resources/testharnessreport.js'></script>
    <script src="/common/performance-timeline-utils.js"></script>
    <script>
      setup({explicit_done: true})

      const {location: {href}} = document
      const urls = {}
      urls['same-origin'] = `${href.substring(0, href.lastIndexOf('/'))}/resources/blue.png`
      urls['cross-origin'] = urls['same-origin'].replace('://', '://www.')
      Object.keys(urls).forEach(function(key) {
        const img = document.createElement('img')
        img.src = urls[key]
        document.getElementsByTagName('script')[0].parentNode.appendChild(img)
      })

      window.addEventListener('load', function() {
        function assertServerTimingEntries(url, expectedEntryCount) {
          test_equals(performance.getEntriesByName(url)[0].serverTiming.length,
            expectedEntryCount,
            `Expected entry count for ${url}: ${expectedEntryCount}`)
        }
        assertServerTimingEntries(urls['same-origin'], 1)
        assertServerTimingEntries(urls['cross-origin'], 0)
        done()
      })
    </script>
</head>
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