title: Vscode for python jupyter fail to show video
body: <p>I'm trying to make a animation in the Jupyter of Visual Studio Code. The code is listed below.</p>
  
  <pre><code>import arviz as az
  from IPython.display import HTML
  from matplotlib.animation import FuncAnimation
  import matplotlib.pyplot as plt
  import numpy as np
  import scipy.stats as st
  ...
  ...
  ...
  anim = FuncAnimation(fig, update, frames=np.arange(bins.shape[0]),
                   init_func=init, blit=True, interval=20)
  HTML(anim.to_html5_video())
  </code></pre>
  
  <p>However, the Jupyter fail to play the video on the Visual Studio Code. The result was shown in the picture below. 
  <a href="https://i.stack.imgur.com/z47nP.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/z47nP.png" alt="enter image description here"></a></p>