What common mistake do developers make with Api differences, why does the mistake cause problems, and what is the safer approach?

What common mistake do developers make with Api differences, why does the mistake cause problems, and what is the safer approach? One recurring problem with API differences is applying it without understanding the boundary it protects. Disabling CSRF protection globally because one AJAX endpoint was implemented incorrectly. In addition, API clients using token-based authentication often use different request protection patterns from session-based browser forms. Safer engineering approach: keep the responsibility in the correct layer, use the framework's supported API, validate and authorize inputs, avoid hidden side effects, and verify the behavior with tests.