Add UIKit key constants sometimes (incorrectly) used by iOS Safari.
@@ -498,6 +498,11 @@ Guacamole.Keyboard = function(element) {
"SingleCandidate": [0xFF3C],
"Super": [0xFFEB, 0xFFEB, 0xFFEC],
"Tab": [0xFF09],
+ "UIKeyInputDownArrow": [0xFF54],
+ "UIKeyInputEscape": [0xFF1B],
+ "UIKeyInputLeftArrow": [0xFF51],
+ "UIKeyInputRightArrow": [0xFF53],
+ "UIKeyInputUpArrow": [0xFF52],
"Up": [0xFF52],
"Undo": [0xFF65],
"Win": [0xFFEB],
