René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"proxied `Error` instances return an undefined stack","articleBody":"### Version\n\n24.11.1\n\n### Platform\n\n```text\nDarwin Mac.fritz.box 24.6.0 Darwin Kernel Version 24.6.0: Mon Jul 14 11:28:30 PDT 2025; root:xnu-11417.140.69~1/RELEASE_ARM64_T6030 arm64\n```\n\n### Subsystem\n\n_No response_\n\n### What steps will reproduce the bug?\n\n```js \nconsole.log(\n  new Proxy(new Error(), {\n    get(target, key, receiver) {\n      // Need to return `target.stack` instead of `Reflect.get` starting with Node.js v21.0.0\n      // when trying to get the `stack`.\n      return Reflect.get(target, key, receiver);\n    },\n  }).stack\n);\n```\n\n### How often does it reproduce? Is there a required condition?\n\nalways\n\n### What is the expected behavior? Why is that the expected behavior?\n\nA stacktrace is logged. `Reflect.get` is supposed to be equivalent to `target[propertyKey]`\n\n### What do you see instead?\n\n`undefined` is logged.\n\n### Additional information\n\nStarted with Node.js v21.0.0. Once I return `target.stack` from the Proxy getter, a stack is returned as usual. `Reflect.get(error, 'stack', receiver)` just doesn't work. Though it does work with `Reflect.get(error, 'stack')`","author":{"url":"https://github.com/eps1lon","@type":"Person","name":"eps1lon"},"datePublished":"2025-11-26T16:34:20.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/60862/node/issues/60862"}