CAS "randomly" not redirecting properly

Hi,

I have a strange issue where the login and redirect process in CAS breaks down somtimes.
Basically for https it is appending a port 80 to the URL and I am not sure at what stage and for what reason this happens.

Below is a log extract if it helps....


...
2008-04-21 14:52:06,628 INFO [org.jasig.cas.CentralAuthenticationServiceImpl] - <Granted service ticket [ST-34-gFWqUbgH56i42QCzTacf-qaapi] for service [http://qadeveloper.xxxxxx.com/cpanel/dashboard] for user [cy.r
i.l@xxxxxxxx.com]>
2008-04-21 14:52:06,628 DEBUG [org.jasig.cas.web.flow.GenerateServiceTicketAction] - <Action 'GenerateServiceTicketAction' completed execution; result is 'success'>
2008-04-21 14:52:06,767 DEBUG [org.jasig.cas.web.support.CasArgumentExtractor] - <Extractor generated service for: http://qadeveloper.xxxxxx.com/cpanel/dashboard>
2008-04-21 14:52:06,767 DEBUG [org.jasig.cas.authentication.handler.support.HttpBasedServiceCredentialsAuthenticationHandler] - <Attempting to resolve credentials for https://qadeveloper.xxxxxx.com/cpanel/dashboard
>
2008-04-21 14:52:06,851 DEBUG [org.jasig.cas.web.flow.InitialFlowSetupAction] - <Action 'InitialFlowSetupAction' beginning execution>
2008-04-21 14:52:06,851 DEBUG [org.jasig.cas.web.support.CasArgumentExtractor] - <Extractor generated service for: https://qadeveloper.xxxxxx.com:80/cpanel/dashboard>
2008-04-21 14:52:06,851 DEBUG [org.jasig.cas.web.flow.InitialFlowSetupAction] - <Placing service in FlowScope: https://qadeveloper.xxxxxx.com:80/cpanel/dashboard>
2008-04-21 14:52:06,851 DEBUG [org.jasig.cas.web.flow.InitialFlowSetupAction] - <Action 'InitialFlowSetupAction' completed execution; result is 'success'>
2008-04-21 14:52:06,851 DEBUG [org.jasig.cas.web.flow.AuthenticationViaFormAction] - <Action 'AuthenticationViaFormAction' beginning execution>
2008-04-21 14:52:06,851 DEBUG [org.jasig.cas.web.flow.AuthenticationViaFormAction] - <Executing setupForm>
2008-04-21 14:52:06,851 DEBUG [org.jasig.cas.web.flow.AuthenticationViaFormAction] - <Creating new form object with name 'credentials'>
2008-04-21 14:52:06,851 DEBUG [org.jasig.cas.web.flow.AuthenticationViaFormAction] - <Creating new instance of form object class [class org.jasig.cas.authentic
...

Anyone have any ideas?

Kind Thanks,
Serge