Preview button is misleading for published content

[daveabrahams]

On my blog at ​http://cpp-next.com, I find that once anything (post, page, or comment) is published, the preview button in the editor just shows me the post as already published.

[scribu]

That's normal behaviour.

You won't see the changes until you save the post.

Perhaps the button text should be replaced with "Show post" instead of "Preview" to avoid confusion.

[ryan]

#10828 dupes this.

[ryan]

I thought preview on a published post was supposed to trigger autosave and show the autosave version.

[westi]

Replying to ryan:

I thought preview on a published post was supposed to trigger autosave and show the autosave version.

It does on my 2.8.4 test install here.

I wonder if the reporter is clicking on the View Post link instead of the Preview Changes link?

[designsimply]

Previewing pre-existing pages breaks at r19461 ​http://core.trac.wordpress.org/changeset/11817 in my tests.

[westi]

Replying to designsimply:

Previewing pre-existing pages breaks at r19461 ​http://core.trac.wordpress.org/changeset/11817 in my tests.

It works fine for me on current 2.9-rare/trunk as well

[ryan]

As reported in #10828, this happens only on pages for me. Posts are fine.

[ryan]

Not seeing any errors in the console. Tried reverting 11817 but the problem persisted.

[ryan]

(In [11960]) Set the cap appropriate to the post type. fixes #10807 see #10605