GWT Debugging

Hello! I am trying to configure IntelliJ to allow me to debug a GWT application. I have followed the steps and have the following...

- Chrome says 'JetBrains IDE support is debugging this browser'

- In IDEA, the Debugger tab says it is connected to the target VM.

- The Dev Mode tab says Dev Mode is initialized and gives a URL, which I can open.

Regardless of when or where I set them, the breakpoints do nothing. I do not want to resort to endless println statements.

Please help.