Security · 19h ago
BFF Pattern Keeps API Tokens Out of the Browser
Exposing API tokens in browser-side JavaScript creates security risks, as any script on the page can read them. The Backend-for-Frontend (BFF) pattern routes all browser requests through a server layer, keeping tokens in HttpOnly cookies and eliminating CORS issues. This approach, built into Next.js App Router via Server Actions and Route Handlers, is a straightforward fix for a common vulnerability.
Meridian48 take
A well-explained reminder that convenience often trumps security in frontend development, but the BFF pattern is a mature, low-overhead solution every team should adopt.
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The BFF Pattern: Your API Token Has No Business in the Browser →
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