I'm not sure that contextmenu event is supported in that old version, and for sure the menu can't be canceled even if it is (I'm not sure it can in the other browsers available for NIT)
$(document).bind('contextmenu', function() { return false; } );
Check the PPK mobile events table here. You can see that dblclick event is not supported at all (check the legacy events part) and contextmenu event is barely supported across all mobile platforms. Knowing that all legacy events are simulated (that is - fired after the touch events, just for compatibility), this sounds rather logical.