Can I add a header to selenium script in a synthetic job

[tim.crall]

I would like to add a header for basic authentication to a request within a selnium script on a synthetic job.  Googling around, I have not found a good way to do this within selenium itself - is there any way to do it in this context?

Using a URL in the format http://username:password@host.domain.com also doesn't seem to be working...

[Amit.Jha]

We do not do any additional operation on the script that is run as a part of the synthetic job. If the script is able to do any such addition and is executing successfully outside appdynamics, it will run with the synthetic job as well.