The Credential Management API

The Credential Management API is a standards-based browser API that provides a programmatic interface between the site and the browser for seamless sign-in across devices.

1. Removes friction from sign-in flows - Users can be automatically signed back into a site even if their session has expired or they saved credentials on another device.
2. Allows one tap sign in with account chooser - Users can choose an account in a native account chooser.
3. Stores credentials - Your application can store either a username and password combination or even federated account details. These credentials can be synced across devices by the browser.

Example

How it works?

1. Password manager prompts with exsiting stored credentials. Select the username & login processes.
2. Enter any username & password, click on ‘Login’.
3. Password store prompt appears from browser's password manager.
4. If the username already exists, if you enter different password, it updates old one.
5. Google login doesn't work in this example. Take the code to your machine & edit the JS FILE.

1. Flipkart.com (Noticed on 5^th Dec, 2018)
   

• MDN web docs
• Google Developers API