📜 Description
Problem
During local machine testing (localhost), cross-origin tracking works effortlessly. However, once you deploy the frontend to a provider like Netlify and the backend to a provider like Render, users can no longer log in. The backend handles credentials correctly and returns a successful authentication header, but the client browser instantly rejects and discards the cookie payload. This occurs because modern web browsers block cross-origin state tracking by default unless cookies are explicitly marked with secure, cross-site transport policies.
Solution
Configure your session store parameters to dynamically adjust cookie transport behavior based on the current deployment environment, ensuring strict transport security is enforced in production.
📜 Description
Problem
During local machine testing (localhost), cross-origin tracking works effortlessly. However, once you deploy the frontend to a provider like Netlify and the backend to a provider like Render, users can no longer log in. The backend handles credentials correctly and returns a successful authentication header, but the client browser instantly rejects and discards the cookie payload. This occurs because modern web browsers block cross-origin state tracking by default unless cookies are explicitly marked with secure, cross-site transport policies.
Solution
Configure your session store parameters to dynamically adjust cookie transport behavior based on the current deployment environment, ensuring strict transport security is enforced in production.