Full-Stack Internet Architecture
May 21, 2025 · Backend Development
Enabling Underscore Headers in Nginx for Spring Boot Applications
This article demonstrates how Nginx’s default behavior ignores request headers containing underscores, causing missing parameters in a Spring Boot application, and shows how to configure the 'underscores_in_headers on;' directive to correctly forward such headers, with code examples and testing via Postman.
NginxReverse ProxySpring Boot
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