Using modules

[jchrom]

Perhaps this is just an instance of a larger issue, maybe related to #405 but not quite the same (I don't get the MIME type of "text/plain" error).

I am able to run my code with live-server without issue. I packaged it into an htmlwidget and tried to run it in an Rmd file with runtime: shiny. I get no output, and I get this in the console:

Uncaught SyntaxError: import.meta may only appear in a module

The import.meta does appear in my /lib/library.min.js file, but this error only happens when trying to render the htmlwidget.

Running the same code outside of the htmlwidgets context, i.e. having a js file with import Thing from "/some/lib.js;" and then <script type="module" src="/my-script.js"></script> in my index.html works perfectly using live-server.

I will be happy for even a high-level explanation of what might be going on here, or where to look for solutions.