react-native: Somewhere between 0.0.55 and 0.0.57, socket.io stops working

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Search for existing issues: https://github.com/facebook/react-native/issues
Use the latest React Native release: https://github.com/facebook/react-native/releases

Environment

Last working version:

react-native info
Environment:
  OS: macOS Sierra 10.12.6
  Node: 8.10.0
  Yarn: 1.6.0
  npm: 5.6.0
  Watchman: 4.9.0
  Xcode: Xcode 9.2 Build version 9C40b
  Android Studio: 3.0 AI-171.4443003

Packages: (wanted => installed)
  react: 16.6.0-alpha.8af6728 => 16.6.0-alpha.8af6728
  react-native: 0.55.x => 0.55.4

Broken version:

  React Native Environment Info:
    System:
      OS: macOS Sierra 10.12.6
      CPU: x64 Intel(R) Core(TM) i7-4770HQ CPU @ 2.20GHz
      Memory: 228.90 MB / 16.00 GB
      Shell: 5.2 - /bin/zsh
    Binaries:
      Node: 8.10.0 - /usr/local/bin/node
      Yarn: 1.6.0 - /usr/local/bin/yarn
      npm: 5.6.0 - /usr/local/bin/npm
      Watchman: 4.9.0 - /usr/local/bin/watchman
    SDKs:
      iOS SDK:
        Platforms: iOS 11.2, macOS 10.13, tvOS 11.2, watchOS 4.2
      Android SDK:
        Build Tools: 19.1.0, 23.0.1, 23.0.2, 25.0.2, 26.0.2, 27.0.3, 28.0.0, 28.0.3
        API Levels: 15, 23, 25, 26, 27
    IDEs:
      Android Studio: 3.0 AI-171.4443003
      Xcode: 9.2/9C40b - /usr/bin/xcodebuild
    npmPackages:
      react: 16.6.0-alpha.8af6728 => 16.6.0-alpha.8af6728
      react-native: 0.57.x => 0.57.4
    npmGlobalPackages:
      create-react-native-app: 1.0.0
      react-native-cli: 2.0.1
      react-native-git-upgrade: 0.2.7
      react-native-workers: 0.3.1

Description

Websocket connections time out on 0.0.57. I made an issue in socket.io, but after switching through react-native versions, it’s clearly a react native issue. https://github.com/socketio/socket.io-client/issues/1245 for an example socketio setup.

It doesn’t seem to be the iPhone X simulator, which in 0.0.57 is the default, but in older versions is not. The iPhoneX simulator runs sockets just fine in the older versions.

It might be babel, as it seems there was an upgrade to babel between these versions.

About this issue

Original URL
State: closed
Created 6 years ago
Reactions: 10
Comments: 38 (2 by maintainers)

Most upvoted comments

Tried “socket.io-client”: “2.0.4” it worked for me

+13

bgoyal2222 on Dec 19, 2018

In react-native: 0.58.4, problem still remains (I’m using https://github.com/stomp-js/stompjs). The thing, that websocket working only when ‘remote debug’ is on, is driving me crazy 😄 Any workarounds for my case?

slavikdenis on Feb 7, 2019

I have the same issue. Interestingly, it works fine when you are running your app while debugging remotely, but as soon as you turn off “debug js remotely”, it stops working.

doostin on Dec 13, 2018

I think this issue should be left open.

peterchibunna on Apr 2, 2019

Tried “socket.io-client”: “2.0.4” it worked for me

This works very well. Thanks @bgoyal2222

khloukrada on Dec 24, 2018

Thanks @bgoyal2222 it’s works with me also. I am using react native “0.56.0”

It’s really horrible spending two days trying to figure out why it’s work with debug remote js and not work without it.

belal-mazlom on Jan 19, 2019

I have the same issue.

Working on 0.55 and not working on 0.56 and 0.57.4 react-native versions

emech-en on Nov 12, 2018

I have opened a bug report for the issue here https://github.com/facebook/metro/issues/365

csotiriou on Mar 7, 2019

@doostin When you debug remotely, I believe the JS runs in Chrome’s javascript engine. My guess is the issue lies in the native engine, which is why you’re not seeing it in debug.

noahprince22 on Dec 14, 2018