Unable to preview comment due to permission issue

[mindctrl]

When trying to preview a comment on make.wordpress.org, I'm receiving the following error in the AJAX response:

{error: "cannot_edit_posts", errorText: "Sorry, you are not allowed to edit posts on this site."}

If it matters, it was this comment: ​https://make.wordpress.org/core/2025/07/02/proposal-introduce-maintenance-mode-for-components/#comment-47727

[sajib1223]

Hi there 👋

I’m still seeing this issue on ​https://make.wordpress.org/training when trying to preview a comment.

When I click “Preview,” I get the following error:

{"success":false,"data":{"error":"cannot_edit_posts","errorText":"Sorry, you are not allowed to edit posts on this site."}}

To help illustrate, here’s a short video showing the issue in real time:
🎥 ​https://www.awesomescreenshot.com/video/45815931?key=fbc2112572c1c367f0a16ab0d7c67c8b

Details:

• Logged in: [Yes]
• Browser: [e.g., Firefox 144.0.2 (64-bit)]
• Operating System: [e.g., Windows 11]
• Example article: ​https://make.wordpress.org/training/2025/10/23/block-editor-basics-course-cohort-in-bengali/

It seems the comment preview action is incorrectly checking for the edit_posts capability, which regular users don't have, causing the error instead of showing the preview.

Hope this helps confirm the problem and move it forward!

[ocean90]

Duplicate of #5884.

Related: ​https://github.com/Automattic/o2/issues/215