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compression fails on Node.js 26 #1171
Description
Situation
Running citgm compression passes on Node.js 22 & 24, and fails on Node.js 26
ReferenceError: require is not defined in ES module scope, you can use import instead| Item | Status |
|---|---|
| npm package | https://www.npmjs.com/package/compression |
| npm status | active |
| last published | 1.8.2 Sep 11, 2026 |
| weekly downloads | 53,709,840 |
| repo location | https://github.com/expressjs/compression |
| repo last update to default branch | Sep 11, 2026 |
| repo status | active |
| repo CI status | runs in Node.js up to 25 |
| lookup - skip | - |
| lookup maintainer 1 | UlisesGascon |
| lookup maintainer 2 | bjohansebas |
Repo CI https://github.com/expressjs/compression/blob/master/.github/workflows/ci.yml runs a full set of EOL and current Node.js versions, except for Node.js 26.
Cloning the repo and running local tests using Ubuntu 26.04.1 LTS and running under Node.js 22, 24 & 26 confirm the compatibility issues for Node.js 26.
Steps to reproduce
Run https://github.com/nodejs/citgm/actions/workflows/test-module.yml
Module to test: compression
CITGM repository to checkout: nodejs/citgm
CITGM GitHub ref to checkout: main
Result
Fails in Node.js 26:
| Node.js | npm | macos | ubuntu | windows |
|---|---|---|---|---|
| 22.23.3 | 10.9.9 | PASS | PASS | PASS |
| 24.21.0 | 11.19.0 | PASS | PASS | PASS |
| 26.10.0 | 11.19.1 | FAIL | FAIL | FAIL |
References
Lines 113 to 115 in 4d3d256
Activity
MikeMcC399 commentedon Oct 5, 2026
Suggestion
https://github.com/expressjs/compression is an active repo. Consider upgrading to minimum
mocha@11and cutting a new release.If that is not possible, then citgm should skip Node.js 26 for
compression.MikeMcC399 commentedon Oct 8, 2026
expressjs/compression#295 has been initiated to resolve this issue
MikeMcC399 commentedon Oct 27, 2026
@UlisesGascon
PR expressjs/compression#295 seems to have stalled. Maybe the
compressionteam could give it a helping hand across the line?compressionCI https://github.com/expressjs/compression/actions/workflows/ci.yml can be expected to transition to a hard failure tomorrow on 2026-10-28 assuming that Node.js 26.13.0 is released as planned with Active LTS status following on from Node.js 24 which has moved into maintenance LTS status.