title: APK download failure if behind password protected site on stock browser
body: <p>I'm having an issue serving an APK on my server that is using rails. I can serve the APK if the download link is put in /public. However, I want to password protect it. If I move the file behind a URL that requires HTTP authentication, then it will fail on the stock browser with a <code>Download Unsuccessful</code> immediately.</p>
  
  <p>If I install and run firefox, firefox is able to download the APK and install correctly.</p>
  
  <p>Anyone know how to make this work with Android's stock browser?</p>
  
  <p>I have added the <code>MIME Type</code> to the server:</p>
  
  <pre><code>Mime::Type.register "application/vnd.android.package-archive", :apk
  </code></pre>
  
  <p>And I'm trying to send_file while behind HTTP authentication:</p>
  
  <pre><code>send_file "android.apk", :type =&gt; 'application/vnd.android.package-archive'
  </code></pre>
  
  <p>Successful HTTP-header from /public:</p>
  
  <pre><code>~  curl -s -D- android.apk -o/dev/null
  HTTP/1.1 200 OK
  Server: nginx/1.4.1
  Date: Thu, 11 Jul 2013 20:06:43 GMT
  Content-Type: application/octet-stream
  Content-Length: 38673086
  Last-Modified: Thu, 11 Jul 2013 20:05:12 GMT
  Connection: keep-alive
  ETag: "51df0ff8-24e1abe"
  Accept-Ranges: bytes
  </code></pre>
  
  <p>Unsuccessful HTTP header from behind HTTP Authentication:</p>
  
  <pre><code>~  curl -s -D- private/android.apk -o/dev/null      
  HTTP/1.1 200 OK
  Server: nginx/1.4.1
  Date: Thu, 11 Jul 2013 20:11:53 GMT
  Content-Type: application/octet-stream
  Transfer-Encoding: chunked
  Connection: keep-alive
  Status: 200 OK
  X-Frame-Options: SAMEORIGIN
  X-XSS-Protection: 1; mode=block
  X-Content-Type-Options: nosniff
  X-UA-Compatible: chrome=1 
  Content-Disposition: attachment; filename="SironaVideoSurvey.apk"
  Content-Transfer-Encoding: binary
  Cache-Control: private
  Set-Cookie: request_method=GET; path=/
  X-Request-Id: 6b99f5e5-87f8-4f8c-816c-0034265b3991
  X-Runtime: 0.016140
  </code></pre>