Enable CORS Post Request from AngularJS to Jersey

Question

I\'m attempting to post a JSON document from an AngularJS app to a Jersey REST service. The request fails, informing me that:

XMLHttpRequest cannot load http:/

Answer 1

Actually, you have other solution that does not need a filter. Adding the Access-Control-Allow-* headers to the GET request, is not enough, you have to create an OPTIONS endpoint to allow browsers do the pre-flight request, i.e.:

@OPTIONS
public Response corsMyResource(@HeaderParam("Access-Control-Request-Headers") String requestH) {
    ResponseBuilder rb = Response.ok();

    return buildResponse(rb, requestH);
}

see https://kdecherf.com/blog/2011/06/19/java-jersey-a-cors-compliant-rest-api/ for reference.