package ch.rasc.extdirectspring.demo;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Component;

@Component
public class SimpleCORSFilter implements Filter {

	@Override
	public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
			throws IOException, ServletException {
		HttpServletResponse response = (HttpServletResponse) res;
		response.setHeader("Access-Control-Allow-Origin", "https://fiddle.sencha.com");
		response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
		response.setHeader("Access-Control-Max-Age", "3600");
		response.setHeader("Access-Control-Allow-Headers",
				"Origin, X-Requested-With, Content-Type, Accept");
		chain.doFilter(req, res);
	}

	@Override
	public void init(FilterConfig filterConfig) {
		// nothing here
	}

	@Override
	public void destroy() {
		// nothing here
	}

}
Add a simple CORS filter, so that we can make calls from sencha fiddle