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1. bceo
   Member
   Posted 7 months ago #

   Hi all,

   I´ve got a Problem with the post/page preview in WordPress.

   The Serve-Configuration is as follow:

   The WordPress address is set to sub2.example.com (IP: 123.12.1.2),
   and the site URL is set to sub1.example.com (IP: 123.12.1.1).

   Both IPs directs to the same server, for each IP there is an own Apache-Instance running.

   If a Client requests the site sub1.example.com, this "server" requests the wordpress site from sub2.example.com, transforms the output and finally send the transformed output to the requesting client:

   
   +--------+      +------------------+       +------------------+
   |        | ---> | sub1.example.com | --->  | sub2.example.com |
   | CLIENT |      |                  |       |                  |
   |        | <--- | IP 123.12.1.1    | <---  | IP: 123.12.1.2   |
   +--------+      +------------------+       +------------------+
                     Transforms the                WordPress
                     WordPress output
   

   This works as it should, but now comes my problem:

   The WordPress admin area is accessible via sub2.example.com/wordpress/wp-admin.
   When I edit a post or a page and click on PREVIEW, I get redirected, for example, to http://sub1.example.com/hello-world/?preview=true&preview_id=1&preview_nonce=1234567890.
   And this redirect fails: "You do not have the necessary rights to see the preview".

   (If I call http://sub2.example.com/hello-world/?preview=true&preview_id=1&preview_nonce=1234567890 it works pretty fine, but i need to call sub1.example.com ...)

   First i thought that this is a Problem with the WordPress authentication cookie, so i installed the Root Cookie Plugin. The cookie, wich is set for sub1.example.com contains :

   • name: wordpress_logged_in_919292837291837382927,
     value: admin%8289328%9324789347843789,
     Domain: .example.com,
     path: /
   • name: wordpress_919292837291837382927,
     value: admin%82893289324%789347843789,
     Domain: .example.com,
     path: /

   But this didn´t solve my Problem, I still get the same error.

   Some other attempts i´ve tried:

   • Setup sub1.example.com as Proxy Server:
     

     define('WP_PROXY_HOST', '123.12.1.1');
     define('WP_PROXY_PORT', '80');
     define('WP_PROXY_USERNAME', '');
     define('WP_PROXY_PASSWORD', '');
     define('WP_PROXY_BYPASS_HOSTS', 'localhost');

   But this also did not work.

   I hope you understand my problem and maybe someone has an idea how to solve this?

   Thanks in advanced and sorry for my bad english (this is not my native language :) )

   (I also posted this question at http://wordpress.stackexchange.com and http://stackoverflow.com)

2. TCBarrett
   Member
   Posted 7 months ago #

   I'm not familiar with the root cookie plugin, but you could try setting it in wp-config.php
   http://codex.wordpress.org/Editing_wp-config.php#Set_Cookie_Domain

3. bceo
   Member
   Posted 7 months ago #

   Thanks for your reply.

   I´ve tried to set up the cookies in wp-config as you mentioned, but the problem still exists (the Root Cookie Plugin creates the same Cookie as if I define it in wp-config).

   BTW: I get an 500 Internal Server error...

   Maybe its cause by the different IP-Adresses?

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