title: InvalidCharacterError: Failed to execute 'createElement' on 'Document': The tag name provided ('/static/media/index.c6592bb6.ts') is not a valid name
body: <p>I have a react app that I am trying to convert to use typescript</p>
  <p>but I'm getting the following error: <code>InvalidCharacterError: Failed to execute 'createElement' on 'Document': The tag name provided ('/static/media/index.c6592bb6.ts') is not a valid name.</code></p>
  <p>What does this error even mean? It looks like it doesn't like the typescript extension</p>
  <p>Any ideas how to fix?</p>