How do I unset my default xdg browser?

I want to debug a program's behaviour when the user has no default web browser set, but I'm not sure how I'd return to this state after setting one. I know that I can **set** my default browser via xdg-settings set default-web-browser , but what if I want to unset it, i.e., make it so that I don't have a default browser? So far I've tried running $ xdg-settings set default-web-browser '' Which resulted in xdg-settings: no parameter value given I also tried $ xdg-settings set default-web-browser ' ' Which resulted in xdg-settings: invalid application name I'm using a minimal installation of Alpine Linux running i3 in X.Org.