An HTTP 1xx informational response (e.g. 100 Continue, 102 Processing, 103 Early Hints) sent before the final response. Multiple of these may be sent for a single request before the final response headers arrive.
A high-precision floating-point monotonically increasing timestamp recording when the informational response was sent.
To link this to the current time, compare it to timingEvents.startTime.
timingEvents.startTime
An HTTP 1xx informational response (e.g. 100 Continue, 102 Processing, 103 Early Hints) sent before the final response. Multiple of these may be sent for a single request before the final response headers arrive.