[wp-trac] [WordPress Trac] #35800: Preview button for CTP not working for user with limited Capabilities

[WordPress Trac]

#35800: Preview button for CTP not working for user with limited Capabilities
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 Reporter:  Webbverkstaden     |      Owner:
     Type:  defect (bug)       |     Status:  new
 Priority:  normal             |  Milestone:  Awaiting Review
Component:  Posts, Post Types  |    Version:  4.4.1
 Severity:  normal             |   Keywords:
  Focuses:  administration     |
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 I have a CPT "platsannonser" that has the capability_type = post. This
 post type can be edited by a custom user type Admanager, with capabilities
 added/limited to this post type through the plugin "Press Permit Core".
 The Admanager users does not have the right to edit regular post. I have
 tried adding that capability, but it made no difference.

 The behavior described below happens when the post author is an Admin. If
 the post author is another user of the same type (Admanager), or another
 custom user type with similar or extended capabilities compared to the
 Admanager, everything works fine.

 The user can preview a post via the Preview link in the posts list, and
 via the Permalink-link in the post editor, but not with the preview button
 on the editor.

 When the Preview button is clicked AFTER the Permalink-link in the editor
 has been clicked (the post is a draft) and a Preview window/tab has
 opened, the Preview button works. But otherwise not.

 When previewing works it opens with an URL like this:
 ~/?post_type=platsannons&p=5383&preview=true


 When the preview button is clicked, the URL(that gives a 404) looks like
 this:
 ~/?post_type=platsannons&p=5383&preview_id=5383&preview_nonce=42d25b539b&post_format=standard&preview=true

 The site is hosted at http://oderland.com. The behavior is there
 regardless of browser type.

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Ticket URL: <https://core.trac.wordpress.org/ticket/35800>
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