This function is used in Persona to cause the browser to reset the automatic / persistent login flag for a website. After being called, the user will need to explicitly log back into your site instead of being signed in automatically.
This function enables a web site to use Persona to authenticate its users. It must be invoked from within a click handler. For example, you should call it when a user clicks your "log in with Persona" button.
The BrowserID protocol defines a new id property on the window.navigator object, through which it exposes the BrowserID API, that is the IdentityManager intreface. This API has gone through several significant revisions. Each generation is listed separately below.