--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/js/dist/vendor/wp-polyfill-dom-rect.js	Tue Dec 15 13:49:49 2020 +0100
@@ -0,0 +1,99 @@
+(function (global) {
+	function number(v) {
+		return v === undefined ? 0 : Number(v);
+	}
+
+ 	function different(u, v) {
+		return u !== v && !(isNaN(u) && isNaN(v));
+	}
+
+ 	function DOMRect(xArg, yArg, wArg, hArg) {
+		var x, y, width, height, left, right, top, bottom;
+
+ 		x = number(xArg);
+		y = number(yArg);
+		width = number(wArg);
+		height = number(hArg);
+
+ 		Object.defineProperties(this, {
+			x: {
+				get: function () { return x; },
+				set: function (newX) {
+					if (different(x, newX)) {
+						x = newX;
+						left = right = undefined;
+					}
+				},
+				enumerable: true
+			},
+			y: {
+				get: function () { return y; },
+				set: function (newY) {
+					if (different(y, newY)) {
+						y = newY;
+						top = bottom = undefined;
+					}
+				},
+				enumerable: true
+			},
+			width: {
+				get: function () { return width; },
+				set: function (newWidth) {
+					if (different(width, newWidth)) {
+						width = newWidth;
+						left = right = undefined;
+					}
+				},
+				enumerable: true
+			},
+			height: {
+				get: function () { return height; },
+				set: function (newHeight) {
+					if (different(height, newHeight)) {
+						height = newHeight;
+						top = bottom = undefined;
+					}
+				},
+				enumerable: true
+			},
+			left: {
+				get: function () {
+					if (left === undefined) {
+						left = x + Math.min(0, width);
+					}
+					return left;
+				},
+				enumerable: true
+			},
+			right: {
+				get: function () {
+					if (right === undefined) {
+						right = x + Math.max(0, width);
+					}
+					return right;
+				},
+				enumerable: true
+			},
+			top: {
+				get: function () {
+					if (top === undefined) {
+						top = y + Math.min(0, height);
+					}
+					return top;
+				},
+				enumerable: true
+			},
+			bottom: {
+				get: function () {
+					if (bottom === undefined) {
+						bottom = y + Math.max(0, height);
+					}
+					return bottom;
+				},
+				enumerable: true
+			}
+		});
+	}
+
+ 	global.DOMRect = DOMRect;
+}(this));
\ No newline at end of file