requestStart property

double get requestStart

The requestStart read-only property returns a DOMHighResTimeStamp of the time immediately before the browser starts requesting the resource from the server, cache, or local resource. If the transport connection fails and the browser retires the request, the value returned will be the start of the retry request.

There is no end property for requestStart. To measure the request time, calculate PerformanceResourceTiming.responseStart - requestStart (see the example below).

Implementation

external double get requestStart;