Using the Java API, on Firefox the log shows this upon login (so upon Board constructor being invoked):
Oct 05, 2017 12:45:13 AM com.vaadin.server.VaadinServlet serveStaticResourcesInVAADIN
INFO: Requested resource
[/VAADIN/frontend/es6/webcomponentsjs/webcomponents-lite.js] not found from filesystem or through class loader. Add widgetset and/or theme JAR to your classpath or add files to WebContent/VAADIN folder.
When selecting the View that contains the Board, the browser hangs and the page is never displyed.
Using Chrome the page is displayed, but there are more logs:
Oct 05, 2017 12:47:49 AM com.vaadin.server.VaadinServlet serveStaticResourcesInVAADIN
INFO: Requested resource
[/VAADIN/frontend/es6/vaadin-board/vaadin-board.html] not found from filesystem or through class loader. Add widgetset and/or theme JAR to your classpath or add files to WebContent/VAADIN folder.
Oct 05, 2017 12:47:49 AM com.vaadin.server.VaadinServlet serveStaticResourcesInVAADIN
INFO: Requested resource
[/VAADIN/frontend/es6/vaadin-board/vaadin-board-row.html] not found from filesystem or through class loader. Add widgetset and/or theme JAR to your classpath or add files to WebContent/VAADIN folder.
Unfortunately it displays all 12 components in 2 rows, even though I defined 4 rows with 3 components each. If the components fit in 2 rows, it doesn’t care that I divided them into 4 rows?
Entered issues https://github.com/vaadin/board/issues/117 and https://github.com/vaadin/board/issues/118