src/sap.ui.core/src/sap/ui/core/support/trace/E2eTraceLib.js
function onLoadstart(event) {
					Log.info(getTstmp(event.timeStamp) + ", " + this.xidx + ": loadstart");
					this.xfirstByteSent = getTstmp(event.timeStamp);
				}
function onLoadstart(event) {
					Log.info(getTstmp(event.timeStamp) + ", " + this.xidx + ": loadstart");
					this.xfirstByteSent = getTstmp(event.timeStamp);
				}
function onLoadstart ( event ) { Log . info ( getTstmp ( event . timeStamp ) + ", " + this . xidx + ": loadstart" ) ; this . xfirstByteSent = getTstmp ( event . timeStamp ) ; }
timestamps dependent on browser type event listeners
timestamps dependent on browser type event listeners