message: Interaction: check for PointerEvents correctly
diff: @@ -2,6 +2,7 @@ const scope = require('./scope');
  const utils = require('./utils');
  const events = require('./utils/events');
  const browser = require('./utils/browser');
  +const domObjects = require('./utils/domObjects');
  const finder = require('./utils/interactionFinder');
  const signals = require('./utils/Signals').new();
  @@ -440,7 +441,7 @@ function endAll (event) {
  const docEvents = { /* 'eventType': listenerFunc */ };
  const pEventTypes = browser.pEventTypes;
  -if (scope.PointerEvent) {
  +if (domObjects.PointerEvent) {
  docEvents[pEventTypes.down ] = listeners.pointerDown;
  docEvents[pEventTypes.move ] = listeners.pointerMove;
  docEvents[pEventTypes.up ] = listeners.pointerUp;
  