BUG | Firefox Failed to Connect to the Backend

[OrbisK]

Describe the bug

Reproduction

https://node-modules.dev/graph#selected=@pnpm/[email protected]&install=@pnpm/core

System Info

System:
    OS: Linux 6.8 Ubuntu 24.04.1 LTS 24.04.1 LTS (Noble Numbat)
    CPU: (8) x64 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz
    Memory: 49.91 GB / 62.58 GB
    Container: Yes
    Shell: 5.9 - /usr/bin/zsh
  Binaries:
    Node: 23.5.0 - ~/.nvm/versions/node/v23.5.0/bin/node
    npm: 10.9.2 - ~/.nvm/versions/node/v23.5.0/bin/npm
    pnpm: 8.15.9 - ~/.nvm/versions/node/v23.5.0/bin/pnpm
    bun: 1.1.42 - ~/.nvm/versions/node/v23.5.0/bin/bun
  Browsers:
    Chrome: 130.0.6723.69
    Firefox: 135.0

Used Package Manager

pnpm

Validations

• Follow our Code of Conduct
• Read the Contributing Guide.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A, please open a GitHub Discussion instead.
• The provided reproduction is a minimal reproducible of the bug.

Contributions

• I am willing to submit a PR to fix this issue
• I am willing to submit a PR with failing tests (actually just go ahead and do it, thanks!)

[serkodev]

I tested it in Firefox 135.0, and there are no errors.
Can you try disabling some extensions or opening it in Private mode to see if there are any errors?

[OrbisK]

I tested it in Firefox 135.0, and there are no errors. Can you try disabling some extensions or opening it in Private mode to see if there are any errors?

Can reproduce this across devices/os (windows 11 and ubuntu). Same problem with private tab.

Same problem if I run pnpm wc:dev. No errors in terminal

[Joery-M]

I'm able to reproduce on Firefox 135, Windows.

Error is caused by a timeout whilst waiting for the result from the WC, currently the timeout is set to roughly 5 seconds, which apparently isn't enough for Firefox.

node-modules-inspector/packages/node-modules-inspector/src/app/webcontainer/container.ts

Lines 102 to 113 in db25857

	async getPayload() {
	let retries = 50
	// eslint-disable-next-line no-unmodified-loop-condition
	while (!result && retries > 0) {
	retries--
	await new Promise(r => setTimeout(r, 100))
	}
	if (!result) {
	throw new Error('Failed to get dependencies')
	}
	return result
	},