CORS-POST Call problem

gistfile1.txt

{
  "log": {
    "version": "1.2",
    "creator": {
      "name": "WebInspector",
      "version": "537.36"
    },
    "pages": [],
    "entries": [
      {
        "startedDateTime": "2013-11-06T08:51:26.508Z",
        "time": 1151,
        "request": {
          "method": "OPTIONS",
          "url": "https://api.user.com/Services/v1/Student.svc/preferences",
          "httpVersion": "HTTP/1.1",
          "headers": [
            {
              "name": "Access-Control-Request-Method",
              "value": "POST"
            },
            {
              "name": "Origin",
              "value": "https://www.google.co.in"
            },
            {
              "name": "Accept-Encoding",
              "value": "gzip,deflate,sdch"
            },
            {
              "name": "Host",
              "value": "api.user.com"
            },
            {
              "name": "Accept-Language",
              "value": "en-GB,en-US;q=0.8,en;q=0.6"
            },
            {
              "name": "User-Agent",
              "value": "Mozilla/5.0 (Windows NT 6.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.101 Safari/537.36"
            },
            {
              "name": "Accept",
              "value": "*/*"
            },
            {
              "name": "Referer",
              "value": "https://www.google.co.in/"
            },
            {
              "name": "Connection",
              "value": "keep-alive"
            },
            {
              "name": "Access-Control-Request-Headers",
              "value": "accept, x-user-session, content-type"
            }
          ],
          "queryString": [],
          "cookies": [],
          "headersSize": 492,
          "bodySize": 0
        },
        "response": {
          "status": 200,
          "statusText": "OK",
          "httpVersion": "HTTP/1.1",
          "headers": [
            {
              "name": "Date",
              "value": "Wed, 06 Nov 2013 08:55:28 GMT"
            },
            {
              "name": "Server",
              "value": "Microsoft-IIS/7.5"
            },
            {
              "name": "X-AspNet-Version",
              "value": "4.0.30319"
            },
            {
              "name": "X-Powered-By",
              "value": "ASP.NET"
            },
            {
              "name": "Access-Control-Allow-Methods",
              "value": "GET,PUT,POST,DELETE,OPTIONS"
            },
            {
              "name": "Content-Type",
              "value": "application/json; charset=utf-8"
            },
            {
              "name": "Access-Control-Allow-Origin",
              "value": "https://www.google.co.in"
            },
            {
              "name": "Cache-Control",
              "value": "private"
            },
            {
              "name": "Access-Control-Allow-Credentials",
              "value": "true"
            },
            {
              "name": "Set-Cookie",
              "value": ".ASPXANONYMOUS=-VwHGk7gzgEkAAAAMmZmNTA5ZWQtZTE2Yy00NGM5LTk0ODAtMTBmMjI0OTAwODJj0; expires=Wed, 13-Nov-2013 08:55:28 GMT; path=/; HttpOnly"
            },
            {
              "name": "Access-Control-Allow-Headers",
              "value": "origin, content-type, accept"
            },
            {
              "name": "Content-Length",
              "value": "5"
            }
          ],
          "cookies": [
            {
              "name": ".ASPXANONYMOUS",
              "value": "-VwHGk7gzgEkAAAAMmZmNTA5ZWQtZTE2Yy00NGM5LTk0ODAtMTBmMjI0OTAwODJj0",
              "path": "/",
              "expires": "2013-11-13T08:55:28.000Z",
              "httpOnly": true,
              "secure": false
            }
          ],
          "content": {
            "size": 0,
            "mimeType": "application/json",
            "compression": -5,
            "text": ""
          },
          "redirectURL": "",
          "headersSize": 590,
          "bodySize": 5
        },
        "cache": {},
        "timings": {
          "blocked": 0,
          "dns": -1,
          "connect": 758,
          "send": 1,
          "wait": 391,
          "receive": 0,
          "ssl": 364
        }
      }
    ]
  }
}