macrozheng

Jul 31, 2019 · Backend Development

Solving CORS Issues in SpringBoot with SpringSecurity: A Step‑by‑Step Guide

This tutorial explains why cross‑origin requests fail in a SpringBoot application that uses SpringSecurity, demonstrates the problem with a sample mall project, and provides a complete solution by configuring a global CorsFilter and adjusting SpringSecurity to allow OPTIONS pre‑flight requests.