Django_plotly_dash: error exporting to pdf with html2pdf.js

I am trying to export a django_plotly_dash dashboard to pdf and can't quite get it. I am stuck with the following error in console when clicking on the button to trigger the export:

ReferenceError: html2pdf is not defined
    at Object.nClicksToPDF [as n_clicks] 

which is telling me that html2pdf cannot be found. I have tried importing in assets folder as well as cdn directly in the app layout but nothing seems to do the trick and I am out of things to try:

here is how I import it in the app:


here is my callback where it is called:

function nClicksToPDF(n_clicks){
  if(n_clicks > 0){
    document.querySelector('.chkremove').style.display = 'none';
    const opt = {
      margin: 2,
      filename: 'myfile.pdf',
      image: { type: 'jpeg', quality: 0.98 },
      html2canvas: { scale: 1},
      jsPDF: { unit: 'cm', format: 'a2', orientation: 'p' },
      pagebreak: { mode: ['avoid-all'] }

      document.querySelector('.chkremove').style.display = 'block';
    }, 2000);

Don't know what else to do, any help would be highly welcome!

The problem comes from the html.Script component, which does not work as one might expect : in short, the <script> tag is created, but never executed.

It is part of a larger issue : Several components have limited or no functionality in current browsers :

[...] browsers don't execute <script>s inserted in the way react does it (via innerHTML). Including html.Script in the documentation only leads folks down dead ends. Either it should use a different insertion mechanism, or it should have a bright big warning in the docs, or it should be removed entirely.

The alternative is to add html2pdf as an external script, ie :

scripts = [{
  'src': ''

app = DjangoDash(__name__, external_scripts=scripts)
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