title: VSCode extension installation fails without errors
body: <h2>Problem</h2>
  
  <p>Hi, whenever I try to install an extension in VSCode the installation is canceled without any error message showing up.</p>
  
  <p><a href="https://i.stack.imgur.com/f89Q4.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/f89Q4.png" alt="Before installation"></a>
  Before installation</p>
  
  <p><a href="https://i.stack.imgur.com/rI34e.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/rI34e.png" alt="During Installation"></a>
  During Installation</p>
  
  <p><a href="https://i.stack.imgur.com/f89Q4.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/f89Q4.png" alt="VSCode jumps back into this state"></a>
  VSCode jumps back into this state</p>
  
  <h2>Question</h2>
  
  <p>How can I figure out <strong>any details</strong> about what the problem is? Is there some hidden error log or anything?</p>
  
  <h2>A Wild Guess</h2>
  
  <p>Im currently on a machine where my administration rights or the proxy configuration may be insufficient. This may be the cause of the problem. Installing an extension manually into the VSCode installation folder, worked.</p>