René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"`pipeline` leaves a hanging error handler","articleBody":"* **Version**: 14.12.0\r\n* **Platform**: `Linux SZM-DESKTOP 4.19.104-microsoft-standard #1 SMP Wed Feb 19 06:37:35 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux`\r\n* **Subsystem**: stream\r\n\r\n### What steps will reproduce the bug?\r\n\r\n```js\r\nconst {pipeline, Duplex, PassThrough} = require('stream');\r\n\r\nconst a = new PassThrough();\r\na.end('foobar');\r\n\r\nconst b = new Duplex({\r\n    write(chunk, encoding, callback) {\r\n        callback();\r\n    }\r\n});\r\n\r\npipeline(a, b, error => {\r\n    if (error) {\r\n        throw error;\r\n    }\r\n    \r\n    console.log(b.listenerCount('error'));\r\n    setTimeout(() => {\r\n        console.log(b.listenerCount('error'));\r\n        b.destroy(new Error('no way'));\r\n    }, 100);\r\n});\r\n```\r\n\r\n### How often does it reproduce? Is there a required condition?\r\n\r\nAlways.\r\n\r\n### What is the expected behavior?\r\n\r\n```\r\n0\r\n0\r\n[Uncaught] Error: no way\r\n```\r\n\r\n### What do you see instead?\r\n\r\n```\r\n2\r\n1\r\n```\r\n\r\n/cc @ronag","author":{"url":"https://github.com/szmarczak","@type":"Person","name":"szmarczak"},"datePublished":"2020-10-01T20:33:29Z","url":"https://github.com/nodejs/node/issues/35452"}