Merge pull request #2718 from alphagov/sticky-footer-new-buttons

Add sticky footer on letter contact details, fix issues

app/assets/javascripts/apiKey.js

@@ -50,6 +50,10 @@
             $component.html(states.keyVisible(key, thing))
         );
 
+      if ('stickAtBottomWhenScrolling' in GOVUK) {
+        GOVUK.stickAtBottomWhenScrolling.recalculate();
+      }
+
     };
   };