function buttonTappedInEdgeBrowser( event ) {
				var eventTarget = event.target;
				var browser = sap.ui.Device.browser;

				return browser.edge && browser.version >= 14 &&
					(eventTarget.tagName.toLowerCase() === "button" &&
						eventTarget.contains(mouseDownTarget) ||
						mouseDownTarget.tagName.toLowerCase() === "button" &&
						mouseDownTarget.contains(eventTarget));
			}
Detects whether edge browser special tap handling is necessary.

Inconsistent event targets for the sap.m.Button control:
EdgeHTML v.| 14 | 15 | 16 | 17 |
----------------------------------
mousedown  |   S|   S|   B|   S|
mouseup    |   B|   B|   B|   B|
click      |   S| S/B|   S| S/B|
----------------------------------
S = SPAN, B = BUTTON

@param {object} event either mouseup or click event.
@returns {boolean} Returns true, when a button was pressed in edge browser with inconsistent event targets.