XFrameOptionsFilter.java

package org.cloudfoundry.identity.uaa.login;

import org.springframework.web.filter.OncePerRequestFilter;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class XFrameOptionsFilter extends OncePerRequestFilter {

    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
        response.addHeader("X-Frame-Options", "DENY");
        filterChain.doFilter(request, response);
    }
}