[Android] Critical Network Failure: All fetch Requests Hang Indefinitely

[IamSuicideman]

Description

All network requests made via the global fetch API hang indefinitely on Android without returning a response or an error. This issue is 100% reproducible and occurs across all React Native environments, including:

• Expo Go
• EAS Development Client builds
• Standalone EAS Production builds
• Brand new, blank projects created with yarn create expo-app

The problem started suddenly approximately one week ago and completely blocks all network-dependent functionality.

Steps to reproduce

1. Clone the minimal reproduction repository: git clone https://github.com/IamSuicideman/expo-fetch-bug-repro.git
2. cd expo-fetch-bug-repro
3. yarn install
4. yarn start and open the project in Expo Go on an Android device.
5. Press the "Run Test" button.
6. Notice the status text remains "Fetching..." indefinitely.

React Native Version

0.79.5

Affected Platforms

Runtime - Android, Build - Windows

Output of npx @react-native-community/cli info

System:
  OS: Windows 11 10.0.22000
  CPU: (4) x64 Intel(R) Core(TM) i5-6300U CPU @ 2.40GHz
  Memory: 1.21 GB / 7.88 GB
Binaries:
  Node:
    version: 20.19.4
    path: ~\AppData\Local\Temp\yarn--1754724893425-0.05245745705395666\node.CMD
  Yarn:
    version: 1.22.22

Stacktrace or Logs

There are no stack traces or crash logs. The defining characteristic of this bug is that the `fetch` promise hangs indefinitely and never resolves or rejects, producing no output.

MANDATORY Reproducer

https://github.com/IamSuicideman/expo-fetch-bug-repro

Screenshots and Videos

The bug is non-visual, as it involves a network request hanging in the background. A screen recording would simply show the UI stuck in a "Fetching..." state indefinitely after a button press.

[atulgpt17]

Hi @IamSuicideman I am not able to repro your bug and I am getting the success output in the console. Printing the logs for your ref:

 LOG  {"body": "quia et suscipit
suscipit recusandae consequuntur expedita et cum
reprehenderit molestiae ut ut quas totam
nostrum rerum est autem sunt rem eveniet architecto", "id": 1, "title": "sunt aut facere repellat provident occaecati excepturi optio reprehenderit", "userId": 1}

Also if this issue is valid and only reproducible in Expo apps please raise the issue in the Expo.
Thanks

[react-native-bot]

Caution

Invalid issue: This issue is not valid, either is not a bug in React Native, it doesn't match any of the issue template, or we can't help further with this.