JavaScript that is loaded as a native ES module via <script type="module"> fails load in ViaHTML, due to webrecorder/pywb#771.
This issue causes our pattern library to failed to load when proxied: https://via.hypothes.is/https://patterns.hypothes.is/.
The console error includes a messages about variables named "arguments":
This error comes from the JS bundle's preamble after it has been preprocessed by pywb:
