浏览器扩展理念：通过Web窗体提供HTTP身份验证值

I want to bounce an idea around. I have been building web services and web applications for over a decade now, and have more recently been focusing on providing as RESTful a service as possible (eg. using the same URI for both browsers and API clients, but having them modify accept: to decide if to send XML or XHTML).I want to bounce an idea around. I have been bu