Inconsistent behavior across platforms when importing `node:http` after defining `Object.prototype['0']`
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Description
Version
24.10.0
Platform
Microsoft Windows NT 10.0.26200.0 x64
and
Linux KContainer 5.10.0-12-amd64 #1 SMP Debian 5.10.103-1 (2022-03-07) x86_64 x86_64 x86_64 GNU/Linux
Subsystem
No response
What steps will reproduce the bug?
Hi,
The behavior can be reproduced by running the following snippet:
Object.defineProperty(Object.prototype, '0', {
set() {
console.log(123);
}
});
import http from "node:http"
Run this code by creating a file a.js in Both Linux and Windows and observe a difference in output.
How often does it reproduce? Is there a required condition?
File extension must be .js
Use import http from "node:http" instead of const http = require('http');
What is the expected behavior? Why is that the expected behavior?
Code should give same output when run in both Linux and Windows
What do you see instead?
Linux:
root@KContainer:~/git/run/test# node test.js
123
(node:1547) [MODULE_TYPELESS_PACKAGE_JSON] Warning: Module type of file:///home/c01kele/git/run/test/test.js is not specified and it doesn't parse as CommonJS.
Reparsing as ES module because module syntax was detected. This incurs a performance overhead.
To eliminate this warning, add "type": "module" to /home/c01kele/package.json.
(Use `node --trace-warnings ...` to show where the warning was created)
123
123
123
Windows:
PS D:\HIWI\RESULTS\31_10_2025> node .\test.js
PS D:\HIWI\RESULTS\31_10_2025>
If you use const http = require('http'); instead of import http from "node:http", both Linux and Windows give no output.
Additional information
No response
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by running the issue's a.js reproduction with the node:http import on the reported Linux and Windows environments, then compare it with the require('http') case. Trace the built-in module import path involved in the platform difference; done means the same output is produced on both platforms without changing the reproduction.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript, node.js
- Domain
- backend, operating-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100