Upload Listeners Not Called

Hi all,

I’ve been trying to use the Upload component with vaadin flow (the one documented here : https://vaadin.com/components/vaadin-upload/java-examples )

The component shows up on the GUI just fine, however, none of its listeners are called when I try to upload a file. (Started, Progress, Finished, Failed, Succeeded- - I tried them all).

The goal would be to upload a csv file to the application. The application is a basic JEE7 app, running on weblogic 12.

Any help would be greatly appreciated :slight_smile:

You could also check this fully functional example: