How to debug chrome devtools panel extension?

Question

I am trying to write Chrome DevTools extension, but I am having some troubles to debug it.

How can I inspect my panel html and debug it\'s javascript?

Answer 1

To me it works with detaching the DevTools and hit CTRL+SHIFT+i (Windows).

Answer 2

If you detach the Dev Tools (icon next to x in the top right corner) in a separate window, and press Ctrl+Shift+I while Dev Tools window is focused, you will invoke the Dev Tools for the Dev Tools window.

As far as I am aware, it's not possible for a docked configuration.