fix: avoid using prefixIdenntifier in esm

[elevatebart]

When using VTU within vite, the version used is esm-bundler.
This version imports the esm-bundler of the compiler-core.

This version does not support prefixIdentifier.

I tried to make a conditional build of VTU.

[lmiller1990]

Cool, once this is approved and all passing, we can merge.

[lmiller1990]

I think you may need to update tsconfig (or somewhere else?) to make this compile.

[lmiller1990]

Thanks @elevatebart, is there some way I can test this out to make sure it's going to work how we want it to? Do you have some way of testing (assuming you did with Vite etc)?

[elevatebart]

We could create a playground-like environment to run VTU in a vite/ESM environment.
I think I would like to call the environment variable with another name than __BROWSER__. Maybe ESM ? I called it this way because it is called this way in vue-next but I find it confusing.
We use __BROWSER__ in node and !__BROWSER__ in vite with in-browser testing.

The good news is there is no emergency right now as I found an "unclean" workaround.

[lmiller1990]

I will release this within 24h.

[elevatebart]

thank you !!!