Copy your browser session cookies and store it in a local server. Then used from withins selenium to bypass your app login process.
This chrome extension is part of an open source project that can be found in: https://github.com/blinq-io/selenium-session-manager
This extension copy your session cookies and store it on a local server (also available as part of the project).
Next by adding a single line of code to your selenium test, it enable you to bypass the login screen and jump directly to your application internal pages.