What common mistake do developers make with Token mismatch handling, why does the mistake cause problems, and what is the safer approach?

What common mistake do developers make with Token mismatch handling, why does the mistake cause problems, and what is the safer approach? One recurring problem with token mismatch handling is applying it without understanding the boundary it protects. Disabling CSRF protection globally because one AJAX endpoint was implemented incorrectly. In addition, A request with an invalid or missing token can be rejected by Laravel's CSRF middleware. 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.