Re: Error: Content-Security-Policy HTTP header: Bad content security policy: Expecting ancestor-source but found "'self".

This list is for HTML Tidy, and nothing to do with the `nu` W3C 
validator...

Maybe you could report the issue through - 
https://validator.w3.org/nu/about.html#issues - a link shown on the page 
you linked to...

HTH.

Received on Thursday, 1 November 2018 19:48:28 UTC