Activated JS: Start the quickstart -> Press the submit buttons -> See the secured page with https!
Deactivates JS: (NoScript Firefox Plugin): Start the quickstart -> Press the submit buttons -> See the secured page BUT with HTTP!
There was no proper https redirect.
If I change the rendering strategy to REDIRECT_TO_BUFFER everything works fine, but if I change the strategy to ONE_PASS_RENDER the https forwarding does't work anymore. But only if I deactivate all scripts...