nodejs / nodejs/node

`DOMException`s do not work with `v8.serialize()`

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v8 module web-standards
Dominant language
JavaScript
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Description

Version

v22.1.0

Platform

Linux ether-laptop 6.5.0-35-generic #35-Ubuntu SMP PREEMPT_DYNAMIC Fri Apr 26 11:23:57 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux

Subsystem

node:v8

What steps will reproduce the bug?
import {serialize, deserialize} from 'node:v8';

const error = AbortSignal.abort().reason;
console.log(error instanceof DOMException); 
// true
console.log(error);
// DOMException [AbortError]: This operation was aborted
//     at new DOMException (node:internal/per_context/domexception:53:5)
//     at AbortSignal.abort (node:internal/abort_controller:205:14)
//     at ...

const clonedError = deserialize(serialize(error));
console.log(clonedError instanceof DOMException); 
// false
console.log(clonedError);
// {}
How often does it reproduce? Is there a required condition?

Always.

What is the expected behavior? Why is that the expected behavior?

A DOMException should be serializable/deserializable like other error instances.

What do you see instead?

Serializing/deserializing with v8 turns it into an empty plain object.

Additional information

Related: structuredClone(domException) returns an empty plain object, which is probably the same bug. This might be related to #49181.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

The report targets node:v8 serialize/deserialize and reproduces the issue with AbortSignal.abort().reason; start by tracing that round trip and comparing it with other Error instances. Done means DOMException survives serialization as a DOMException with its observable data preserved, with a regression test covering the reported example.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript, node.js
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
48/100

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