build error: chunkFilename.replace is not a function at getDefaultChunkFilename

[sanderg93]

• Operating System: Ubuntu 20.04
• Node Version: v14.16.1
• NPM Version: 7.9.0
• webpack Version: 5.30.0
• worker-loader Version: v3.0.8

Expected Behavior

PdfjsLib library uses worker-loader to load pdf worker.

Expecting for webpack to build just fine.

Actual Behavior

Building gives the following error:

ERROR in ./node_modules/pdfjs-dist/build/pdf.worker.js (./node_modules/worker-loader/dist/cjs.js?esModule=false&filename=[name].js!./node_modules/pdfjs-dist/build/pdf.worker.js)
Module build failed (from ./node_modules/worker-loader/dist/cjs.js):
TypeError: chunkFilename.replace is not a function
at getDefaultChunkFilename (/node_modules/worker-loader/dist/utils.js:23:24)
at Object.pitch (/node_modules/worker-loader/dist/index.js:61:108)

webpack compiled with 1 error

Code

"use strict";

var pdfjs = require("./build/pdf.js");
var PdfjsWorker = require("worker-loader?esModule=false&filename=[name].js!./build/pdf.worker.js");

if (typeof window !== "undefined" && "Worker" in window) {
  pdfjs.GlobalWorkerOptions.workerPort = new PdfjsWorker();
}

module.exports = pdfjs;

How Do We Reproduce?

Try to run the above code with the versions mentioned

[sanderg93]

npm install pdfjs-dist@2.7.570 is used in this example

[alexander-akait]

You don't need this loader for webpack v5, please look at this https://webpack.js.org/guides/web-workers/

[AdamRamberg]

I've got the exact same issue.

@alexander-akait when using that approach all my jest tests that are importing the module that uses that syntax explodes. It's due to this issue, which seems to be unfixable atm.

[alexander-akait]

Let's open an issue in jest, because it is valid ESM

[AdamRamberg]

There is already a long-lived issue open that aims to solve this problem here. Haven't been diving into the specifics too much, but from my understanding this is not a problem that is easily fixed.

Just noticed that it seems to be fixed in jest 27 though. See this comment.