[BUG] MaxListenersExceededWarning: Possible EventEmitter - broken node 20

[boldt]

System info

• Playwright Version: v1.40.0
• Operating System: Docker Images: Docker images created after this commit (841bb92) are affected, e.g.
  • mcr.microsoft.com/playwright:v1.40.0@sha256:9dcc823ba14151eecb81eedb3a0abcb4fac942ae7fa9c9f96fdfcc7f5db9d239

Issue

The docker images create the following errors. when you run npm behind a corporate proxy:

This issue is known and fixed in node 20:

• [BUG] MaxListenersExceededWarning: Possible EventEmitter memory leak detected. (v10) npm/cli#6763
• New LTS 20.9.0 uses npm 10.1.0 which has issues with proxy config nodejs/node#50376

Solution

Please update to the newest node 20 version in the docker image, were this issue is fixed.

[EDIT] Seems to work with the current image mcr.microsoft.com/playwright:v1.40.1

[yury-s]

This should already be fixed in the future releases as we pull latest Node.js 20.x version when building the images.

[k1w1m8]

I tried doing a workaround for this,

npm config set proxy $HTTP_PROXY
npm config set https-proxy $HTTP_PROXY

I found that NO_PROXY still works as usual.

I wanted to use 1.40.1, but seems it is only partially released, npm and docker is available, but not java / maven?