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Opened 7 weeks ago

Last modified 4 weeks ago

#8266 new defect (bug)

Connection reset error when trying to post Markdown and preview in posts

Reported by:	flexseth	Owned by:
Priority:	normal	Milestone:
Component:	Make (Get Involved) / P2	Keywords:
Cc:

Description

Originally reported as https://core.trac.wordpress.org/ticket/65360, posted here by @dd32

https://make.wordpress.org/core/2026/05/21/media-editor-modal-call-for-testing/#respond

Add Markdown, try to preview
it times out.

Seen this on other .org properties

Error:

The connection to the server has been interrupted. Please reconnect.

Attachments (1)

Screenshot 2026-05-27 at 20.35.55.png (26.2 KB ) - added by dd32 7 weeks ago.

Download all attachments as: .zip

Change History (2)

@dd32
7 weeks ago

Attachment Screenshot 2026-05-27 at 20.35.55.png added

#1 @justlevine
4 weeks ago

The https://make.wordpress.org/core/wp-admin/admin-ajax.php?action=o2_read&method=preview endpoint returns a 400 with the following payload:

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

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