Webmin won't load after logging in

If you are using the default theme "Authentic" and the extension "Audio Equalizer"

Disable the extension "Audio Equalizer" on that page or change theme.

The problem comes from your browser fail after being told to define "core" twice.
Uncaught SyntaxError: Identifier 'core' has already been declared (at bundle.min.js?26504009999999999:1:1)

I know the chance is one in a whatnot but maybe it can save someone a couple of minutes.