UserManager Methods

signinSilent

In this variation the library generates a hidden iframe into which the browser loads a URL on the authentication server, then redirects the iframe to your page. This only works to get user information when the authentication server is able to recognize an active session for the browser without any user interaction.

The URL that the iframe will be redirected to is the silent_redirect_uri given when constructing the UserManager on which you call signinSilent. If signinSilent is given a parameter that has a state property, the value of that property will be reconstructed later on the User object.

The page that loads at silent_redirect_uri cannot generate a User itself; the iframe is hidden and temporary, so that probably wouldn't be useful anyway. What it can do is trigger the generation of a User in the parent page by reconstructing the UserManager and invoking signinSilentCallback with the query string that came from the authentication server. The state property on the User object will be the state property of the parameter given to signinRedirect.

signinRedirect causes the User object to be generated, but the promise it returns resolves to null, so the object must be retrieved by other means. If User generation fails, the promise will reject with a non-null error.