title: Angular JS using $http() get a status 200 response , but data is null
body: <p>I am trying to connect a GET request to a cgi url, I am getting the below mentioned response which has 200 status but null data.</p>
  
  <pre><code>call{"data":"","status":"200",
  "config":{"method":"GET","transformRequest":[null],
  "transformResponse":[null]",
  "url":"http://121.158.1.255/app_status.cgi?wlan",
  ""application/json,text/plan,*/*"}},"statusText":"OK"}
  </code></pre>
  
  <p>Do I need to include any header data ? If I do need to add WhyI am getting the status as 200 which means "Success"</p>