When trying to launch an application from Citrix Web Interface using Citrix Access Gateway on a Mac OS X client, you may receive the following error:

SSL Error 61: You have not chosen to trust "RapidSSL CA" the issuer of the server's security certificate.
Error number: 183

To resolve the issue:

- Click the padlock icon in the top right corner of the Safari Web Browser window.
- Select the certificate mentioned in the error message (RapidSSL CA).
- Drag the certificate image from the bottom pane to the desktop.
- Double click on the certificate on the desktop.
- If prompted select the System keychain to import to and click OK.

If errors occur importing the certificate:

- Select the System keychain in the left pane of the Keychain Access application.
- Select File | Import Items
- Browse to the certificate on the desktop and click Open.
- Enter the password if prompted.

This issue may also be resolved with the following server side configuration:

How to use intermediate certificates with Access Gateway VPX and an iPad
http://theether.net/kb/100190