Function stopRequestCallbackTimer

code/communication/public/app.js:7680–7688

(didExpire)

}

function stopRequestCallbackTimer(didExpire) {
  if (enableUserTimingAPI) {
    if (supportsUserTiming) {
      isWaitingForCallback = false;
      var warning$$1 = didExpire ? 'React was blocked by main thread' : null;
      endMark('(Waiting for async callback...)', '(Waiting for async callback...)', warning$$1);
    }
  }
}

function startWorkTimer(fiber) {
  if (enableUserTimingAPI) {