[x] when a user closes, esc or clicks/touches away from the modal window
event: "Popup"
eventCategory: "What to expect guide popup image"
eventAction: "Close window" OR "Esc key pressed" OR "Clicked outside window"
To be added in another sprint
eventLabel: "Document series e.g. ADM 188 from
<meta name="DCSext.docref" content="ADM 188/758/55839">
Script development for
Dependencies
Event tracking
Acceptance/test criteria
Test criteria for dataLayer and GA debug