LayoutClickListener acts differently in Firefox and Chromium


I’ve just noticed that when you put a disabled TextField in the VerticalLayout with a LayoutClickListener attached then it works differently in these two browsers. In Chromium it is activated when you click on textfield or on the caption. In Chromium it is activated only when you click on the caption and nothing happens when you click on the textbox.
Which behaviour is correct? Any workarounds?

Example code:

Window mainWindow = new Window("ClickListenerBug");
TextField textField = new TextField("Caption");

VerticalLayout layout = new VerticalLayout();
layout.addListener((LayoutClickListener) new LayoutClickListener() {

public void layoutClick(LayoutClickEvent event) {
((VerticalLayout) event.getSource()).getWindow().showNotification("click!");