SharePoint2013 Hosted App Accessing Custom WCF web Service

Hi,

I am trying to access custom WCF web service from SP-Hosted Add-in and getting below error, however if we use same peace of code in normal web application I am able to get the data from custom web-service.

Error: Response Status Text: “Error:Access is Denied.\r\n

Could you please share the solution, if someone has come across this situation and got the solution?

I had written below code to call web service and it is written in App.js

requestUri= "webservice url /parameter ";

 return $.ajax({        

url: requestUri,        

type: "GET",        

data: "",        

headers: { "accept": "application/json;odata=verbose" },       

 ContentType: "application/json; charset=utf-8",         dataType: "json",        

success: function (data) {             alert(data);         },         error: function (data) {             alert(data);         }     });

Web.config

<?xml version="1.0" encoding="UTF-8"?>

<configuration>

  <configSections>

    <sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >

     <section name="Namespace.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />

    </sectionGroup>

  </configSections>

  <appSettings>

    <add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" />

  </appSettings>

  <system.web>

    <compilation debug="true" targetFramework="4.5" />

    <httpRuntime targetFramework="4.5" />

       <identity impersonate="false" />

       <authentication mode="Windows" />

  </system.web>

  <system.serviceModel>

    <client />

    <!--<bindings>

     <basicHttpBinding>

       <binding name="ExampleBinding" transferMode="Streamed" />

     </basicHttpBinding>

    </bindings>-->

    <services>

     <service name="ServiceName" behaviorConfiguration="ServiceBehavior">

       <endpoint address="" binding="webHttpBinding" contract="serviceController" behaviorConfiguration="httpBehavior">

       </endpoint>

     </service>

    </services>

    <behaviors>

     <serviceBehaviors>

       <behavior name="ServiceBehavior">

         <!-- To avoid disclosing metadata information, set the values below to false before deployment -->

         <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" />

         <!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information -->

         <serviceDebug includeExceptionDetailInFaults="false" />

       </behavior>

     </serviceBehaviors>

     <endpointBehaviors>

       <behavior name="httpBehavior">

         <webHttp />

       </behavior>

     </endpointBehaviors>

    </behaviors>

    <protocolMapping>

       <add binding="basicHttpsBinding" scheme="https" />

    </protocolMapping>   

    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />

    <standardEndpoints>

     <webScriptEndpoint>

       <standardEndpoint name="" crossDomainScriptAccessEnabled="true" />

     </webScriptEndpoint>

    </standardEndpoints>   

  </system.serviceModel>

  <system.webServer>

    <httpProtocol>

     <customHeaders>

       <add name="Access-Control-Allow-Origin" value="*"/>

       <add name="Access-Control-Allow-Headers" value="Content-Type, Accept" />

       <add name="Access-Control-Allow-Methods" value="POST,GET,OPTIONS" />

       <add name="Access-Control-Max-Age" value="1728000" />

     </customHeaders>

    </httpProtocol>

    <modules runAllManagedModulesForAllRequests="true" />

    <directoryBrowse enabled="true" />

  </system.webServer>

 </configuration>