Make the info field readonly:
<input type="text" ng-readonly="all">
Definition and Usage
ng-readonly order sets the readonly property of a structure
field (input or textarea).
The structure field will be readonly if the articulation inside the
property returns true.
ng-readonly order is important to almost certainly move the
false. In HTML, you can't set
readonly credit to
false (the nearness of the
readonly characteristic makes the component readonly, paying little respect to it's value).
Supported by <input> <textarea> elements.
|expression||An articulation that will set the component's readonly quality on the off chance that it returns true.|