nodejs/node

Version

v24.13.0

Platform

arwin Richards-MacBook-Air.local 25.2.0 Darwin Kernel Version 25.2.0: Tue Nov 18 21:09:55 PST 2025; root:xnu-12377.61.12~1/RELEASE_ARM64_T8103 arm64

Subsystem

https

What steps will reproduce the bug?

The following script will fail:

const https = require('https')
const fs = require('fs')
const assert = require('assert')

const url = 'https://storage.googleapis.com/chrome-for-testing-public/145.0.7632.77/mac-arm64/chrome-mac-arm64.zip'

const request = https.request(url, response => {
  const contentLength = response.headers['content-length']
  response.pipe(fs.createWriteStream('test.zip'))
  response.on('end', () => {
    const stats = fs.statSync('test.zip')
    assert.equal(stats.size, contentLength)
  })
})

request.end()

How often does it reproduce? Is there a required condition?

100% of the time.

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

No error.

What do you see instead?

AssertionError [ERR_ASSERTION]: 170216693 == '170231101'
    at IncomingMessage.<anonymous> (tmp.js:12:12)
    at IncomingMessage.emit (node:events:520:35)
    at endReadableNT (node:internal/streams/readable:1701:12)
    at process.processTicksAndRejections (node:internal/process/task_queues:89:21) {
  generatedMessage: true,
  code: 'ERR_ASSERTION',
  actual: 170216693,
  expected: '170231101',
  operator: '==',
  diff: 'simple'
}

Additional information

No response