Tip from an Expert on SSO Connection Issues
If you get the error when connecting to TDV with SSO, check the Exception stack trace. If the source of the exception is “java.io.IOException: FULL head”, you need to configure a larger header buffer size. The default size is 4096.
To modify the setting
1. Log into Studio as the admin user.
2. Select Administration > Configuration from the Studio menu bar.
3. Locate the two Head Buffer Size configuration parameters:
— HTTP > Header Buffer Size
— HTTPS > Header Buffer Size
4. Increment the value by 4096 until you no longer get the error.
5. Restart the Server.