WWW.responseHeader["STATUS"] does not exists

Question

I already asked on answers.unity3d but as there is no response I'll ask on SO too..

I'm not able to retrieve the http status of a response on the WWW object on Windows Phone 8 and Windows RT 8.1 (while it's ok on IOS/Android).

www.responseHeader["STATUS"] does not exists and the hidden field _responseHeaderString does not contain as first line

HTTP/1.1 200 OK

---

responseHeaderString :

Server: nginx
Date: Wed, 21 Oct 2015 07:44:36 GMT
Last-Modified: Mon, 07 Sep 2015 11:43:46 GMT
Connection: keep-alive
Expires: Fri, 20 Nov 2015 07:44:36 GMT
Cache-Control: max-age=2592000
Cache-Control: public

responseHeader :

{
    "SERVER"       : "nginx"
    "DATE"         : "Wed, 21 Oct 2015 07:44:36 GMT"
    "LAST-MODIFIED": "Mon, 07 Sep 2015 11:43:46 GMT"
    "CONNECTION"   : "keep-alive"
    "EXPIRES"      : "Fri, 20 Nov 2015 07:44:36 GMT"
    "CACHE-CONTROL": "public"
}

---

Sample code to reproduce : (tested on an empty new project)

WWW www = new WWW("http://www.google.com");

yield return www;

Debug.Log("Google Status : " + www.responseHeaders.ContainsKey("STATUS")); // False
Debug.Log(www.text); // <doctype ...
Debug.Log(www.responseHeaders["STATUS"]); // KeyError

---

Am I missing something or is there someone that can confirm this as a bug ?

Edit: Still not able to retrieve the http status with the latest 5.3

Answer 1

Your network server is probably responding with a different (unexpected) response to each device. For various reasons such as the user agent string, which could lead the WWW class to not get the STATUS.

Firstly, I would install a proxy so you can see exactly what the phone sends and what the server raw response is. Either Charles Proxy (mac/windows) or Fiddler (windows) are great.

Here is the actual code that Unity WWW class is using to generate status:

        if (num++ == 0 && text.StartsWith("HTTP"))
        {
            dictionary["STATUS"] = text;
        }

Ref: https://github.com/MattRix/UnityDecompiled/blob/master/UnityEngine/UnityEngine/WWW.cs#L483

From the proxy it should be clear what is happening. If not, post the request and response here (as raw).