What is Verdaccio's default login?

Back in the day admin:admin worked, but that results in an access denied. verdaccio:verdaccio does not work as well. The Dockerfile does not seem to contain a default password as well.

Command

docker run -it --rm --name verdaccio -p 4873:4873 verdaccio/verdaccio

Log

http <-- 401, user: null(172.17.0.1), req: 'POST /-/verdaccio/login', error: ba
d username/password, access denied
 http <-- 401, user: null(172.17.0.1), req: 'POST /-/verdaccio/login', error: ba
d username/password, access denied
 http <-- 401, user: null(172.17.0.1), req: 'POST /-/verdaccio/login', error: ba
d username/password, access denied

GitHub

https://github.com/verdaccio/verdaccio/issues/1599

adduser

When http://localhost:4873 is opened, an instruction is shown how to create a new user. However, this fails:

npm adduser --registry http://localhost:4873
Username: (admin) wow
Password: ()
Email: (this IS public) (jane@example.com) admin@admin.admin
npm ERR! code E403
npm ERR! 403 403 Forbidden - PUT http://localhost:4873/-/user/org.couchdb.user:wow
npm ERR! 403 In most cases, you or one of your dependencies are requesting
npm ERR! 403 a package version that is forbidden by your security policy.

Perhaps the company's proxy is causing the issue?

After issuing npm config set https-proxy http://company-proxy and running the npm adduser again, a 403 is still returned.

There is no default password, actually none at all. You must create a new user with

➜ npm adduser --registry  http://localhost:4873/
Username: wow
Password: 
Email: (this IS public) verdaccio.does.ignore.email@whatever.com
Logged in as wow on http://localhost:4873/

Then you are logged in.

StackExchange DevOps Q#9964, answer score: 5