Webpack: The request of a dependency is an expression

## Brief
In a webpack environment, I have a modularized ES6 module with pthreads enabled, that I am trying to import. However, the webpack app (internal to my company but outside my team) gives an error on [this line](https://github.com/emscripten-core/emscripten/blob/main/src/worker.js#L183-L184) of the generated javascript file.

## Metadata
* Version: 3.1.34
* Dev background -- I'm mostly a C++ / embedded developer, not a web development expert. This could be user error, just looking for insights into what might be going on

## Details
Here is a screenshot of the webpack error

This error does not occur in any of the other deployments of this internal package. This seems to be related to webpack wanting to resolve imports statically, so is there a flag or something I can set to change this line? We do not go down the `urlOrBlob` code path anyways, at least for my purposes.