HTTP

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Preflight

3 resources tagged Preflight across methods, status codes, headers, cookies, guides, and glossary.

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HTTP Headers

Access-Control-Request-Headers Header

Learn how Access-Control-Request-Headers tells servers which custom headers will be used in CORS requests. Essential for preflight request handling.

 HTTP Headers

Access-Control-Request-Method Header

Learn how Access-Control-Request-Method tells servers which HTTP method will be used in the actual CORS request. Essential for preflight request handling.

 Guides

Cross-Origin Resource Sharing (CORS)

Master Cross-Origin Resource Sharing (CORS) for secure cross-origin HTTP requests. Learn preflight requests, headers, credentials, and common error solutions.