title: Is it safe to use UTF-8 character literals in JavaScript source code?
body: <p>Is it save to write JavaScript source code (to be executed in the browser) which includes UTF-8 character literals?</p>
  
  <p>For example, I would like to use an ellipses literal in a string as such:</p>
  
  <pre><code>var foo = "Oops… Something went wrong";
  </code></pre>
  
  <p>Do "modern" browsers support this? Is there a published browser support matrix somewhere?</p>