User Picker Fails to Open with 404 or 'Page Not Available' Error
Symptoms
When clicking the icons which open the user picker, the pop-up window fails to open as a 404 or 'page not found' error. In the following example, we show the user picker failing in the task list macro.
Cause
- The URL we are using to connect to Confluence with does not match the baseURL.
- There is a reverse proxy which is incorrectly set or other another network related issue.
Resolution
Cause 1
Set the Base URL to match the URL you are using to connect to Confluence. For more details please see Configuring the Server Base URL.
Cause 2
Double check the settings for the proxy in use, as there are many types of proxies it is hard to give a specific instructions. A good diagnostic step would be to run a trace to see where the redirection is failing.