Html Webpack Plugin:
<pre>
  Error: The loader "/Users/guidone/web/node-red-contrib-chatbot-mission-control/node_modules/html-webpack-plugin/lib/loader.js!/Users/guidone/web/node-red  -contrib-chatbot-mission-control/src/index-html-plugin.html" didn't return html.
  
  - index.js:323 HtmlWebpackPlugin.evaluateCompilationResult
    [node-red-contrib-chatbot-mission-control]/[html-webpack-plugin]/index.js:323:24
  
  - index.js:230 
    [node-red-contrib-chatbot-mission-control]/[html-webpack-plugin]/index.js:230:22
  
  - runMicrotasks
  
  - task_queues:94 processTicksAndRejections
    node:internal/process/task_queues:94:5
  
  - async Promise.all
  
  - async Promise.all
  
</pre>