Watermark api fail to compile with demo haven't purchased a licence key yet

PDF.js Express Version 6.2.1

Detailed description of issue
{Fail to add watermark in the document , trying to use the watermark with [ docViewer.setWatermark

Code snippet
{WebViewer({
initialDoc: ‘https://url/to/my_file.docx’,
// …
}, viewerElement)
.then(instance => {
const { docViewer } = instance;

docViewer.setWatermark({
  // Draw diagonal watermark in middle of the document
  diagonal: {
    fontSize: 25, // or even smaller size
    fontFamily: 'sans-serif',
    color: 'red',
    opacity: 50, // from 0 to 100
    text: 'Watermark'
  },

  // Draw header watermark
  header: {
    fontSize: 10,
    fontFamily: 'sans-serif',
    color: 'red',
    opacity: 70,
    left: 'left watermark',
    center: 'center watermark',
    right: ''
  }
});

});}

Hey there!

This is a known issue and will be fixed in 7.3, which should be released very soon (next week).

Thanks!
Logan