Spaces on password: limitation on original dropbox zxcvbn implementation

[formigarafa]

I saw a reference to dropbox/zxcvbn#227 here: https://github.com/18F/identity-idp/blob/main/spec/support/shared_examples/password_strength.rb#L46 which made me curious.

It seem the js source lib have an annoying limitation when the password being checked include spaces.

Annoying only be the fact they no longer update (or publish updates for) it.

I am wondering what can I do to improve the results without breaking compatibility.