java - Restlet 1.1 Access Control Header Issue -

i'm working on restlet built on restlet 1.1.1

the issue i'm facing setting 'access-control-allow-origin' header allow cross domain requests. i've attempted few things didn't work.

method one, put header in acceptrepresentation function:

@override public void acceptrepresentation( representation resetentity ) {     form headers = (form)getresponse().getattributes().get("org.restlet.http.headers");      if (headers == null) {         headers = new form();         getresponse().getattributes().put("org.restlet.http.headers", headers);     }     headers.add("access-control-allow-origin","https://origin.server.edu");      //other code here actual resource logic... } 

this didn't work. still received errors when attempting send request using jquery such:

jquery.ajax({     type: "post",     contenttype: "application/json",     url: "https://test.servername.edu/cas/cas-rest-api/reset/",     data: json.stringify("{\"uname\" : \"someone\", \"attr\":\"dataelement\" }"),     datatype: "json",     crossdomain: true }) .done(function(data){     console.log("success");     alert(data); }) .fail(function(data){     console.log("failure");     console.log(data);     alert(data); }); 

this didn't work. noticed init function in resource class. figured i'd attempt putting code there see if change situation.

@override public void init(context context, request request, response response ){     form headers = (form)response.getattributes().get("org.restlet.http.headers");      if (headers == null) {         headers = new form();         response.getattributes().put("org.restlet.http.headers", headers);     }     headers.add("access-control-allow-origin","https://origin.server.edu");     super.init(context, request, response); } 

nope. didn't work either. missing here? set header?

thanks replies. after analysis of problem turned out needed configure spring allow option requests restlet in web.xml file shown below:

<servlet>     <servlet-name>ccrest</servlet-name>     <servlet-class>com.noelios.restlet.ext.spring.restletframeworkservlet</servlet-class>     <init-param>         <param-name>dispatchoptionsrequest</param-name>         <param-value>true</param-value>     </init-param>     <load-on-startup>2</load-on-startup> </servlet>