Symptoms

If your web browser is complaining about JavaScript errors or functions not being defined, then it is possible that you are not retrieving the latest versions of pages from your Confluence instance.

The Rich Text Editor does not load up correctly.

Cause

There are several causes:

1. An invalid entry in the browser cache.
2. Interference by antivirus software. For example, it has been reported that NOD32 antivirus software can attempt sanitation of some confluence javascript when that javascript is served by IIS.
3. If you are using Internet Explorer 7 or 8, you may have hit the Stylesheet Limitation by having too many plugins enabled on Confluence.

Resolution

To fix this, clear your browser cache. Follow the instructions for your particular browser:

• Internet Explorer: How and Why to Clear Your Cache
• Firefox: How to clear the cache
• Safari: Safari: Clear Cache
• Chrome: Delete your cache and other browser data

Try to disable unused plugins and/or enable plugin support mode.