SSO Offloading Handler is a free Chrome extension designed to enhance user authentication processes in isolated web applications and Chrome apps. By delegating authentication flows from ControlledFrame and WebView to a standard browser tab, it addresses the limitations of sandboxed environments that restrict access to browser cookies. This functionality enables users to log in once via their browser and remain authenticated across different applications, effectively reducing the need for repeated login attempts during Identity Provider (IdP) authorization.

This extension is specifically geared towards applications that implement SSO Offloading through the sso-offloading-connector NPM package. It ensures secure communication by validating senders against a predefined list of trusted applications, making it a reliable tool for enhancing user experience in environments where traditional authentication methods fall short.