title: Flutter better_player cannot play video url without extension
body: <p>this is a video url:</p>
  <pre><code>https://d6b09034.tekurarere.tk/mq/NNUVmAXzjPHmdFAxvlmOAXjNYAmNAgjVmZJiRmX_lp
  </code></pre>
  <p><strong>My code:</strong></p>
  <pre><code>@override
  void initState(){
      super.initState();
      BetterPlayerDataSource betterPlayerDataSource = BetterPlayerDataSource(
          BetterPlayerDataSourceType.network,
          &quot;https://d6b09034.tekurarere.tk/mq/NNUVmAXzjPHmdFAxvlmOAXjNYAmNAgjVmZJiRmX_lp&quot;,
          headers: {&quot;User-Agent:&quot;:&quot;Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:59.0) Gecko/20100101 Firefox/59.0&quot;, &quot;Content-Type:&quot;:&quot;application/vnd.apple.mpegurl&quot;}
          );
      _betterPlayerController = BetterPlayerController(
          BetterPlayerConfiguration(),
          betterPlayerDataSource: betterPlayerDataSource);
    }
  </code></pre>
  <p><strong>Expected behavior:</strong>
  play a video from a url without file extension</p>
  <p><strong>Flutter doctor</strong></p>
  <p>Doctor summary (to see all details, run flutter doctor -v):</p>
  <p>[✓] Flutter (Channel master, 1.26.0-2.0.pre.168, on Linux, locale tr_TR.utf8)</p>
  <p>[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.2)</p>
  <p><strong>Better Player version:</strong>
  ^0.0.48</p>
  <p><strong>Scrensshots:</strong></p>
  <p>can be played url (vlc, js video player bla bla )
  <a href="https://i.stack.imgur.com/1bOI8.png" rel="nofollow noreferrer">enter image description here</a></p>