[Android] Network DevTools show 0B response size for non-localhost requests

[pFornagiel]

Description

In React Native Network DevTools launched on Android emulator, the response size is always reported as 0B for network requests made to non-localhost endpoints. This occurs regardless of the actual size of the response body. The issue is not present when using iOS simulators.

Simplest reproducer app: https://github.com/pFornagiel/rn-android-request-size-issue

Steps to reproduce

1. Install React Native application via React Native Community CLI
2. Launch the app, then the DevTools, open Network tab
3. Make any request outside localhost - the response will be reported to have 0B

React Native Version

0.84.0-rc.1

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

System:
  OS: macOS 15.6.1
  CPU: (8) arm64 Apple M1 Pro
  Memory: 123.84 MB / 16.00 GB
  Shell:
    version: "5.9"
    path: /bin/zsh
Binaries:
  Node:
    version: 20.19.4
    path: /Users/pawel/.nvm/versions/node/v20.19.4/bin/node
  Yarn:
    version: 1.22.22
    path: /opt/homebrew/bin/yarn
  npm:
    version: 10.8.2
    path: /Users/pawel/.nvm/versions/node/v20.19.4/bin/npm
  Watchman:
    version: 2025.06.30.00
    path: /opt/homebrew/bin/watchman
Managers:
  CocoaPods:
    version: 1.16.2
    path: /Users/pawel/.rbenv/shims/pod
SDKs:
  iOS SDK:
    Platforms:
      - DriverKit 25.2
      - iOS 26.2
      - macOS 26.2
      - tvOS 26.2
      - visionOS 26.2
      - watchOS 26.2
  Android SDK: Not Found
IDEs:
  Android Studio: 2025.2 AI-252.28238.7.2523.14608894
  Xcode:
    version: 26.2/17C52
    path: /usr/bin/xcodebuild
Languages:
  Java:
    version: 17.0.15
    path: /usr/bin/javac
  Ruby:
    version: 3.1.0
    path: /Users/pawel/.rbenv/shims/ruby
npmPackages:
  "@react-native-community/cli":
    installed: 20.0.0
    wanted: 20.0.0
  react:
    installed: 19.2.3
    wanted: 19.2.3
  react-native:
    installed: 0.84.0-rc.1
    wanted: 0.84.0-rc.1
  react-native-macos: Not Found
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: true
  newArchEnabled: true
iOS:
  hermesEnabled: true
  newArchEnabled: true

Screenshots and Videos

[react-native-bot]

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