pullStream And Passwords

Is there any mechanism, when doing a pullStream, to send username/password information? I’m trying to get a feed from an HTTP URL and it requires such authentication. I couldn’t find anything in the API that would indicate how to send any kind of credentials. Maybe I missed it? In the meantime, I’m trying to find out if there are other URLs to use for this particular feed (such as RTMP) that wouldn’t require credentials, but I’m not hopeful about that. Thanks, ~~Bonnie