$http.get('http://localhost/myProject/content.json').success(function (data) {
        // Do stuff...
}).error((data, status, headers, config) => {
        // Failure...
});

<staticContent>
    <remove fileExtension=".json" />
    <mimeMap fileExtension=".json" mimeType="application/json" />
  </staticContent>

$http.get('content.json').success(function (data) {
        // Do stuff...
}).error((data, status, headers, config) => {
        // Failure...
});

<configuration>
    <system.web>
      <compilation debug="true" targetFramework="4.5" />
      <httpRuntime targetFramework="4.5" />
    </system.web>
   **<system.webServer>
    <staticContent>
      <mimeMap fileExtension=".json" mimeType="application/json" />
    </staticContent>
  </system.webServer>**
</configuration>


This works fine.. as what Erez A. Korn has said.