A common issue in Laravel applications using SPAs is the CORS error, often incorrectly addressed as a development-server-only problem. The recommended practice is to configure CORS centrally on the backend, driven by a single environment variable that defines allowed origins. This approach avoids scattered, per-endpoint CORS logic and simplifies management, particularly when dealing with deployments to various frontend URLs, including those with sub-paths.
For those working with AI/ML applications, this highlights the importance of secure API design and consistent configuration across environments. A key takeaway is to avoid wildcard origins to prevent unauthorized access and maintain API security.
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