Function finalizeAndReportTiming

deps/undici/src/lib/web/fetch/index.js:303–365

(response, initiatorType = 'other')

// https://fetch.spec.whatwg.org/#finalize-and-report-timing
function finalizeAndReportTiming (response, initiatorType = 'other') {
  // 1. If response is an aborted network error, then return.
  if (response.type === 'error' && response.aborted) {
    return
  }

  // 2. If response’s URL list is null or empty, then return.
  if (!response.urlList?.length) {
    return
  }

  // 3. Let originalURL be response’s URL list[0].
  const originalURL = response.urlList[0]

  // 4. Let timingInfo be response’s timing info.
  let timingInfo = response.timingInfo

  // 5. Let cacheState be response’s cache state.
  let cacheState = response.cacheState

  // 6. If originalURL’s scheme is not an HTTP(S) scheme, then return.
  if (!urlIsHttpHttpsScheme(originalURL)) {
    return
  }

  // 7. If timingInfo is null, then return.
  if (timingInfo === null) {
    return
  }

  // 8. If response’s timing allow passed flag is not set, then:
  if (!response.timingAllowPassed) {
    //  1. Set timingInfo to a the result of creating an opaque timing info for timingInfo.
    timingInfo = createOpaqueTimingInfo({
      startTime: timingInfo.startTime
    })

    //  2. Set cacheState to the empty string.
    cacheState = ''
  }

  // 9. Set timingInfo’s end time to the coarsened shared current time
  // given global’s relevant settings object’s cross-origin isolated
  // capability.
  // TODO: given global’s relevant settings object’s cross-origin isolated
  // capability?
  timingInfo.endTime = coarsenedSharedCurrentTime()

  // 10. Set response’s timing info to timingInfo.
  response.timingInfo = timingInfo

  // 11. Mark resource timing for timingInfo, originalURL, initiatorType,
  // global, and cacheState.
  markResourceTiming(
    timingInfo,
    originalURL.href,
    initiatorType,
    globalThis,