How to prevent to index preview pages?

Hi,

The issue is that some plugin or theme is creating URLs that Google is somehow finding. It is not possible with Yoast to add a noindex tag to those URLs. To resolve the issue we suggest the following actions:

1. Contact the theme or plugin developer responsible for creating those previewed pages and confirm they are being created correctly.

2. Add a rule in your robots.txt file that specifically disallows those URLs from getting crawled by Google. This guide explains more about how to use a disallow rule: https://searchengineland.com/a-deeper-look-at-robotstxt-17573

and this one on how to edit the robots file: https://kb.yoast.com/article/279-how-to-edit-robots-txt-through-yoast-seo

We are going ahead and marking this issue as resolved due to inactivity. If you require any further assistance please create a new issue.