Get data from a remote service using the web proxy in SharePoint 2013

http://code.msdn.microsoft.com/office/SharePoint-2013-Get-data-705bdcd5
http://msdn.microsoft.com/en-us/library/fp179895.aspx
vs2012 -> file -> new -> project c# -> office/SharePoint -> apps -> apps for SharePoint 2013 -> "WebProxyApp"

 

WebProxyApp -> Scripts -> add -> new item -> select JavaScript template and name it as "WebProxyExec.js"
add below custom JavaScript code

"use strict";

(function () {

    var context = SP.ClientContext.get_current();

    var request = new SP.WebRequestInfo();

    request.set_url("http://www.microsoft.com/en-us/news/rss/rssfeed.aspx?ContentType=FeatureStories&Tags=\".NET+Framework\"");

    request.set_method("GET");

    var response = SP.WebProxy.invoke(context, request);

    document.getElementById("stories").innerHTML = "<P>Loading stories...</P>";

    context.executeQueryAsync(successHandler, errorHandler);

    function successHandler() {

        var stories;

        var storiesHTML;

        var xmlDOM;

        if (response.get_statusCode() == 200) {

            xmlDOM = new ActiveXObject("Microsoft.XMLDOM");

            xmlDOM.async = false;

            xmlDOM.loadXML(response.get_body());

            stories = xmlDOM.selectNodes("//title");

            storiesHTML = "<UL>";

            for (var i = 0; i < stories.length; i++) {

                storiesHTML += "<LI>" + stories[i].text + "</LI>";

            }

            storiesHTML += "</UL>";

            document.getElementById("stories").innerHTML = storiesHTML;

        }

        else {

            var errordesc;

            errordesc = "<P>Status code: " + response.get_statusCode() + "<br/>";

            errordesc += response.get_body();

            document.getElementById("stories").innerHTML = errordesc;

        }

    }

    function errorHandler() {

        document.getElementById("stories").innerHTML = response.get_body();

    }

})();

WebProxyApp -> Pages -> Default.aspx

add below code to "PlaceHolderMain" Content PlaceHolder

  <div>

        <p id="message">

            initializing...

        </p>

        <WebPartPages:WebPartZone runat="server" FrameType="TitleBarOnly" ID="full" Title="loc:full" />

        Featured stories in Microsoft News Center:

   

    <span id="stories"></span>

        <script type="text/javascript" src="../_layouts/15/SP.Runtime.js">    </script>

        <script type="text/javascript" src="../_layouts/15/SP.js">    </script>

        <script type="text/javascript" src="../Scripts/WebProxyExec.js">    </script>

 </div>

WebProxyApp -> AppManifest.xml 

1. Go to Genaral Tab

Query String -> Remove this "{StandardTokens}"

2. Go to "Remote EndPoint" Tab on same AppManifest.xml file

Enter this url as EndPoint "http://www.microsoft.com" and Click on 'Add' button

WebProxyApp -> Right click -> Deploy

for this solution only Internet Explorer is working, chrome is not working.

Thank You.