James Amner

Javascript Error Reporting Client is a plugin that collects javascript errors from the visitors to your website and stores them for you to review.
This is ideally used by plugin and theme developers to help debug issues that are difficult to reproduce, or could be specific to a specific user.

Javascript Error Reporting Client

A plugin that collects javascript errors from every client and provides a dashboard for you to review these errors.

basvd

Note: This plugin does not work in WP 2.5. The AJAX referer check in WP 2.5 does not conflict with a hardened version of PHP, so this plugin is no longer adequate. 
If you still experience the permission problem it is likely your browser or a plugin.
This plugin fixes an issue that can cause several problems in the Administration Panel, including the following:
<ol>
<li>The “You don’t have permission to do that” error when performing certain actions, even though you are in fact logged in</li>
<li>The “Are you sure you want to edit this page: “”?” confirmation when trying to save a post or page</li>
<li>Inability to remove pages or posts using the Management panels</li>
<li>And possibly other problems that have similar symptoms</li>
</ol>
Most people who get these problems seem to be on a server that uses a hardened version of PHP. This version adds several security measures to PHP, including transparent cookie encryption. The WordPress function that checks whether you can perform certain actions in the Administration Panel (<code>check_ajax_referer()</code>) does not function properly because of this. This plugin replaces that function with a something that does take the cookie encryption into account.

AJAX Referer Fix

Fixes a problem that causes "You don't have permission to do that" errors. It replaces the pluggable check_ajax_referer() with a safe a …

Javascript Error Reporting Client vs AJAX Referer Fix