CNAME Cross-User Banned when accessing https://registry.yarnpkg.com/

[abbr]

Do you want to request a feature or report a bug?
bug

What is the current behavior?
when running yarn install

error An unexpected error occurred: "https://registry.yarnpkg.com/autoprefixer: Request \"https://registry.yarnpkg.com/autoprefixer\" returned a 403".
info If you think this is a bug, please open a bug report with the information provided in "E:\\xxx\\yarn-error.log".
info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.

browsing https://registry.yarnpkg.com gives

Error 1014 Ray ID: 420b8cff09a229e3 • 2018-05-25 22:48:39 UTC
CNAME Cross-User Banned
What happened?
You've requested a page on a website that is part of the Cloudflare network. The host is configured as a CNAME across accounts on Cloudflare, which is prohibited by security policy.

What can I do?
If you are interested in learning more about Cloudflare, please visit our website.

Cloudflare Ray ID: 420b8cff09a229e3 • Your IP: xxx.xxx.xxx.xxx • Performance & security by Cloudflare

[jbbn]

Duplicated: #5885

[codymikol]

+1 D:

[arcanis]

Closing in favor of #5885