Extract X-Forwarded-* headers to generate correct redirect uri

src/main/java/se/su/dsv/whisperapi/WhisperApiApplication.java

@@ -2,7 +2,9 @@ package se.su.dsv.whisperapi;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.web.servlet.FilterRegistrationBean;
 import org.springframework.context.annotation.Bean;
+import org.springframework.core.Ordered;
 import org.springframework.security.config.Customizer;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.web.SecurityFilterChain;
@@ -24,7 +26,9 @@ public class WhisperApiApplication {
     }
 
     @Bean
-    public ForwardedHeaderFilter forwardedHeaderFilter() {
-        return new ForwardedHeaderFilter();
+    public FilterRegistrationBean<ForwardedHeaderFilter> forwardedHeaderFilter() {
+        var filterRegistrationBean = new FilterRegistrationBean<>(new ForwardedHeaderFilter());
+        filterRegistrationBean.setOrder(Ordered.HIGHEST_PRECEDENCE);
+        return filterRegistrationBean;
     }
 }