title: Unity PHP Post doesn't send POST variable
body: <p>I use WWWForm, It's not working with ssl connection,</p>
  
  <p>if I use <code>http://</code> connection on secure domain it doesn't send POST variable and if I use <code>https://</code> it given error </p>
  
  <blockquote>
    <p>unknown error</p>
  </blockquote>
  
  <p>So it just working and send variable only non-secure domain</p>
  
  <p>Unity3d version is 2017.3.0p1</p>
  
  <p>I tried windows and mac version</p>
  
  <p>Here is c# code:</p>
  
  <pre><code>    WWWForm form = new WWWForm();
  
  
      form.AddField("a", "var1");
      form.AddField("b", "var2");
      string url = "http://www.example.com/ajax/test.php";
  
      WWW w = new WWW(url, form);
      yield return w;
      if (!string.IsNullOrEmpty(w.error)) {
          Debug.Log(w.error);
      }
      else {
          Debug.Log(w.text);
     }
  </code></pre>
  
  <p>It returns only <code>test</code>.</p>
  
  <p>Here is test.php :</p>
  
  <pre><code>&lt;?
  echo 'test '.$_POST["a"];
  ?&gt;
  </code></pre>
  
  <p>Please assist on me, what should I do?</p>