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POAjax request with JAX-RS/RESTEasy implementing CORS
 

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    <p>I have two servers (Apache and JBoss AS7) and I need to provide access to all http methods to a client. All these request must be sent via ajax. Example of the client code:</p> <pre><code>$.ajax({ type: "get", url: "http://localhost:9080/myproject/services/mobile/list", crossDomain: true, cache: false, dataType: "json", success: function(response) { console.log(response); }, error: function (jqXHR, textStatus, errorThrown) { console.log(textStatus); console.log(jqXHR.responseText); console.log(errorThrown); } }); </code></pre> <p>In JBoss AS7 I'm using RESTEasy, implementing CORS as follows:</p> <pre><code>@Path("/mobile") @Provider @ServerInterceptor public class GroupMobile implements MessageBodyWriterInterceptor { @Inject private GroupDAO groupDAO; @GET @Path("/list") @Produces(MediaType.APPLICATION_JSON) public List&lt;Group&gt; getGroups() { return groupDAO.listAll(); } @Override public void write(MessageBodyWriterContext context) throws IOException, WebApplicationException { context.getHeaders().add("Access-Control-Allow-Origin", "*"); context.proceed(); } @OPTIONS @Path("/{path:.*}") public Response handleCORSRequest( @HeaderParam("Access-Control-Request-Method") final String requestMethod, @HeaderParam("Access-Control-Request-Headers") final String requestHeaders) { final ResponseBuilder retValue = Response.ok(); if (requestHeaders != null) retValue.header("Access-Control-Allow-Headers", requestHeaders); if (requestMethod != null) retValue.header("Access-Control-Allow-Methods", requestMethod); retValue.header("Access-Control-Allow-Origin", "*"); return retValue.build(); } } </code></pre> <p>web.xml and beans.xml are empty files. When I access MyIP:8080 (Apache), I get the error message:</p> <pre><code>XMLHttpRequest cannot load http://localhost:9080/myproject/services/mobile/list?_=1359480354190. Origin http://MyIP:8080 is not allowed by Access-Control-Allow-Origin. </code></pre> <p>Does anybody know what is wrong?</p>
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    1. CO[this article](http://blog.usul.org/cors-compliant-rest-api-with-jersey-and-containerresponsefilter/) helped me. i'm using jersey though.
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      1. USJanus Troelsen
 

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