Incompatible with import-in-the-middle loader

[timfish]

Acknowledgements

• I read the documentation and searched existing issues to avoid duplicates
• I am reporting a confirmed bug (not seek debugging help)
• I understand this is a collaborative project and relies on my contributions
• I read and understood the Contribution guide

Problem & expected behavior (under 200 words)

With import-in-the-middle@1.7.1 and the following code

test.ts

import { register } from "node:module";
register("import-in-the-middle/hook.mjs", import.meta.url);
await import("node:util");

Running:

tsx test.ts

I get the following stack trace:

TypeError: The URL must be of scheme file
    at new NodeError (node:internal/errors:406:5)
    at fileURLToPath (node:internal/url:1393:11)
    at finalizeResolution (node:internal/modules/esm/resolve:234:42)
    at moduleResolve (node:internal/modules/esm/resolve:845:10)
    at defaultResolve (node:internal/modules/esm/resolve:1043:11)
    at nextResolve (node:internal/modules/esm/hooks:833:28)
    at y (file:///Users/tim/Documents/Repositories/sentry-v8-tsx-error-repro/node_modules/tsx/dist/esm/index.mjs?1715697897382:128:19)
    at j (file:///Users/tim/Documents/Repositories/sentry-v8-tsx-error-repro/node_modules/tsx/dist/esm/index.mjs?1715697897382:191:20)
    at nextResolve (node:internal/modules/esm/hooks:833:28)
    at resolve (/Users/tim/Documents/Repositories/sentry-v8-tsx-error-repro/node_modules/import-in-the-middle/hook.js:94:23) 

If you disable allowJs this no longer errors.

Bugs are expected to be fixed by those affected by it

• I'm interested in working on this issue

Supporting engineering work financially will speed up resolution

• I'm willing to offer financial support

[privatenumber]

I'm going to close this temporarily for bug tracking purposes since the minimal reproduction should prove that the bug is in tsx rather than import-in-the-middle.

But don't let that deter you and feel free to investigate further. If you determine it's actually a bug in tsx, I'd be happy to accept a PR.

The published tsx code is minified, but the contribution guide has development tips on how you can turn it off and use the dev version:
https://github.com/privatenumber/tsx/blob/master/CONTRIBUTING.md#development

[timfish]

Do you have any tips for debugging loader hooks? I'm console.loging in multiple modules but it's super painful to not be able to add breakpoints in the node built in code!

[nwalters512]

I'm highly confident that this is an issue with import-in-the-middle and not tsx: getsentry/sentry-javascript#12011 (comment)

[timfish]

Turns out it's a Node bug triggered by a combination of import-in-the-middle setting parentURL to node:* and tsx attempting to load missing files while searching through various extensions.

nodejs/node#52987