I have an AMP story page that even if the AMP Validator passes it as valid, the Google AMP Test prompts me that it is invalid with a Indexing error that says URL marked 'noindex'.
Obviously i do not have any noindex meta on the content of the page and i do not know why the Google AMP Test does not validate the story.
Any clues would be appreciated!
This is not caused by the contents of your page but rather the HTTP headers. The headers of this page are:
HTTP/1.1 200 OK =>
Date => Wed, 05 Feb 2020 16:39:25 GMT
Server => Apache
Cache-Control => max-age=0, must-revalidate, private
pragma => no-cache
expires => -1
X-Robots-Tag => noindex
Access-Control-Allow-Origin => *
Access-Control-Allow-Headers => authorization, origin, user-token, x-requested-with, content-type, Content-type
Access-Control-Allow-Methods => PUT, GET, POST, DELETE, OPTIONS
Connection => close
Content-Type => text/html; charset=UTF-8
The X-Robots-Tag => noindex causes Google's AMP Test service to not be able to fetch your page to evaluate whether it is valid. Removing this header should resolve the issue.