Preview doesn’t work - WP installed in its own directory

[antares19]

1. Wordpress is installed on /wp/ subdirectory.

2. Then it was set up to be visible from the site root according to ​http://codex.wordpress.org/Giving_WordPress_Its_Own_Directory

3. Site works fine

4. [BUG] Preview for posts & pages isn’t working.

When I press preview it goes to url like:
​http://example.com/?preview=true&preview_id=235&preview_nonce=aa28f04
and says "You do not have permission to preview drafts.".

5. If I type subdirectory name “/wp/” in that url by hands, it shows correct preview: ​http://example.com/wp/?preview=true&preview_id=235&preview_nonce=aa28f04

6. The situation is getting worse if i'm using permalinks. In that case - there is nothing i can do to see preview.

ps: I’ve tested that on clean install.

Just found walkaround on the forums. This problem is related to this bug:
http://core.trac.wordpress.org/ticket/12081

So i've changed AUTH_KEY, SECURE_AUTH_KEY, LOGGED_IN_KEY, NONCE_KEY in wp-config.php and the bug is gone.

Anyway that was strange unexpected behavior, i think it should be fixed someway.

ps: Thanks to SergeyBiryukov who gave me this solution.

Is this still an issue? If the issue was #12081, I don't think there's a bug here.

Closing as worksforme, It appears to work fine for me. Feel free to re-open with specific details if this is still an issue.

I was able to reproduce this on a localized install of 3.1-RC1.

After several hours of debugging wp_create_nonce(), wp_verify_nonce() and wp_salt(), I've noticed that somehow I was logged out on ​http://example.com/, but logged in on ​http://example.com/wp/. After I logged in again through the Meta widget on ​http://example.com/, the bug was gone.

According to wp_set_auth_cookie(), both cookies are set simultaneously, so I'm not sure how to reproduce it from scratch. Therefore I've decided not to reopen the ticket.

OK, now I'm able to reproduce it from scratch.

The only situation when home cookie is set and siteurl cookie is not, is right after
you make WordPress visible from the site root (as described by antares19 in step 2). Until you log out and log in again, you won't be able to preview posts and pages.

So I guess it's a misconception, but not actually a bug.

#22706 was marked as a duplicate.

So I guess it's a misconception, but not actually a bug.

We should still try to fix it.

An easy fix would be to change the Codex: ​http://codex.wordpress.org/Giving_WordPress_Its_Own_Directory

Just add something like: "If you find that this makes it impossible to preview posts, simply log out and log back in again to reset your site cookie."

It's a simple fix once you know it but it was completely un-obvious to me what the problem was, and the actual problem is maddening.

I still have this issue. Our setup is a bit convoluted since we are slowly migrating parts of our site to wordpress, so index.html is still live. I'm guessing the instructions for giving wordpress it's own directory only works in certain situations? I've followed all of these steps (even tryed to rewrite to /wp/index.php instead of /index.php just to rule it out) but it still wants to forward all previews to the site root index.html.

Since we are using pretty permalinks I can't edit the preview button target to anything that works or I would have done that long ago.

Replying to kristinachilds:

I still have this issue. Our setup is a bit convoluted since we are slowly migrating parts of our site to wordpress, so index.html is still live.

Your issue may sound similar, but the cause appears to be different in your case.

Please try the support forums for troubleshooting: ​http://wordpress.org/support/

Thanks. For anyone else coming across this problem, here's the solution ​http://wordpress.stackexchange.com/q/75099/20954

Related: #23371