Puppeteer throwing ECONNRESET error while connecting to wsEndpoint

Steps to reproduce

Tell us about your environment:

• Puppeteer version: 1.17.0
• Platform / OS version: Alpine Linux - Edge
• Node.js version: 10

What steps will reproduce the problem?

I am trying to run my puppeteer tests within a docker.

1. I followed the troubleshooting page and replicated the same dockerfile

FROM alpine:edge

# Installs latest Chromium (76) package.
RUN apk add --no-cache \
      chromium \
      nss \
      freetype \
      freetype-dev \
      harfbuzz \
      ca-certificates \
      ttf-freefont \
      openjdk8-jre \
      bash \
      nodejs \
      yarn

# Tell Puppeteer to skip installing Chrome. We'll be using the installed package.
ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD true

WORKDIR /usr/local/extranet

COPY ./ /usr/local/extranet

RUN yarn && yarn build

CMD ["yarn", "test:ci"]

1. I am running my tests using Jest + Puppeteer using jest-puppeteer package. Described in the example found in https://github.com/smooth-code/jest-puppeteer/tree/master/examples/create-react-app

2. I am running my testcases with yarn test:ci command which does the following.

• Start my local server, to serve my website
• Launch puppeteer with the following config:

{
    headless: true,
    executablePath: '/usr/bin/chromium-browser',
    args: ['--no-sandbox', '--disable-setuid-sandbox', '--disable-background-timer-throttling', '--disable-backgrounding-occluded-windows', '--disable-renderer-backgrounding']
}

• Then extract the wsEndpoint using browser.wsEndpoint()
• Use that value in another place to do a puppeteer.connect() passing the wsEndpoint value

What is the expected result?

The test case ran successfully

What happens instead?

Getting an error: connect ECONNREFUSED 127.0.0.1:36085 The port keeps varying everytime.

[EXPEpaher]

Seeing the same issue, downgrade did not help. Tried puppeteer version 1.11.0 which comes with chromium_revision 609904. I think it corresponds to chrome-72 based on the version logs here, https://www.npmjs.com/package/puppeteer

Running node v10.15.3 on a Linux machine. Could use some help please.

[stale[bot]]

We are closing this issue. If the issue still persists in the latest version of Puppeteer, please reopen the issue and update the description. We will try our best to accomodate it!