New Test
open /run/com.vaadin.tests.components.window.WindowWithInvalidCloseListener?restartApplication
mouseClick vaadin=runcomvaadintestscomponentswindowWindowWithInvalidCloseListener::/VWindow[0]/domChild[0]/domChild[0]/domChild[1] 6,7
assertElementNotPresent vaadin=runcomvaadintestscomponentswindowWindowWithInvalidCloseListener::/VWindow[0]