Cybersecurity English
Application Security

What is Preflight Request Handling?

Preflight Request Handling The process of managing HTTP preflight requests (OPTIONS method) sent by browsers to check CORS permissions before the actual API request is made, ensuring proper cross-origin policy enforcement.

Source: ISO 27001, NIST Cybersecurity Framework, MITRE ATT&CK

How is “Preflight Request Handling” Used in Practice?

Configure Preflight Request Handling on all CORS-enabled APIs to ensure proper validation of allowed methods and headers.

Certification Exam Relevance

CISSPCompTIA Security+CEH

Who Needs to Know This Term?

  • SOC Analysts
  • Security Engineers
  • Incident Responders

Related Cybersecurity English Terms

CORS Policy EnforcementSecurity Header EnforcementBroken Access ControlSecurity Event Logging

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Frequently Asked Questions

What is Preflight Request Handling?

The process of managing HTTP preflight requests (OPTIONS method) sent by browsers to check CORS permissions before the actual API request is made, ensuring proper cross-origin policy enforcement.

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