performanceResourceTiming.workerStart

• 类型:<number>

  \Type: <number>

即将发送 fetch 请求之前的高解析度毫秒时间戳。如果资源没有被工作进程截获,该属性将始终返回 0。

\The high resolution millisecond timestamp at immediately before dispatching the fetch request. If the resource is not intercepted by a worker the property will always return 0.