碰到了跨域问题， Redirect is not allowed for a preflight request

This topic created in 2109 days ago, the information mentioned may be changed or developed.

后端配置：

@Configuration
public class CorsConfigure implements WebMvcConfigurer {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedOrigins("*")
                .allowedMethods("GET", "HEAD", "POST", "PUT", "DELETE", "OPTIONS")
                .allowCredentials(true)
                .maxAge(3600)
                .allowedHeaders("*");
    }
}

然后前端的 OPTIONS 预请求有 302 问题。后台添加拦截器放行所有的 OPTIONS 方法

@Component
public class CorsInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) {
        response.setHeader("Access-Control-Allow-Origin", request.getHeader("origin"));
        response.setHeader("Access-Control-Allow-Credentials", "true");
        response.setHeader("Access-Control-Allow-Methods", "GET, HEAD, POST, PUT, PATCH, DELETE, OPTIONS");
        response.setHeader("Access-Control-Max-Age", "86400");
        response.setHeader("Access-Control-Allow-Headers", "*");

        // 如果是 OPTIONS 则结束请求
        if (HttpMethod.OPTIONS.toString().equals(request.getMethod())) {
            response.setStatus(HttpStatus.NO_CONTENT.value());
            return false;
        }
        return true;
    }
}