[bug] socks5 proxyUrl has no effect on Android

[fokx]

Describe the bug

when setting socks5 proxy in tauri.conf.json

  "app": {
    "windows": [
      {
        "title": "tauri-app",
        "width": 800,
        "height": 800,
        "proxyUrl": "socks5://127.0.0.1:2080",
        "url": "https://bgp.he.net"
      }
    ],
    "security": {
      "csp": null
    }
  },

in which bgp.he.net is a website that can show visitor's IP,
and run it on Android using pnpm tauri android dev,
then my real IP is shown.
While by configuring Firefox Nightly's socks5 proxy, I can get my proxy' IP.
This means the proxyUrl setting does not work.

Reproduction

I create a example project:
https://github.com/fokx/tauri-app-reproduction-socks5-error-android
created by pnpm create tauri-app with vanilla setting, pnpm as pkg manager, and has socks5 proxy and url configured.

then running

pnpm i
pnpm tauri android init
pnpm tauri android dev 

Expected behavior

The app should show my proxy server's IP.

Full tauri info output

[✔] Environment
    - OS: Arch Linux Rolling Release x86_64 (X64) (Unknown DE on tty)
    ✔ webkit2gtk-4.1: 2.46.6
    ✔ rsvg2: 2.59.2
    ✔ rustc: 1.85.0 (4d91de4e4 2025-02-17)
    ✔ cargo: 1.85.0 (d73d2caf9 2024-12-31)
    ✔ rustup: 1.27.1 (54dd3d00f 2024-04-24)
    ✔ Rust toolchain: stable-x86_64-unknown-linux-gnu (default)
    - node: 22.11.0
    - pnpm: 9.15.5
    - yarn: 4.3.0
    - npm: 10.9.0

[-] Packages
    - tauri 🦀: 2.3.1
    - tauri-build 🦀: 2.0.6
    - wry 🦀: 0.50.1
    - tao 🦀: 0.32.6
    - tauri-cli 🦀: 2.2.7
    - @tauri-apps/api : 2.3.0
    - @tauri-apps/cli : 2.3.1

[-] Plugins
    - tauri-plugin-opener 🦀: 2.2.6
    - @tauri-apps/plugin-opener : 2.2.6

[-] App
    - build-type: bundle
    - CSP: unset
    - frontendDist: ../dist
    - devUrl: http://localhost:1420/
    - bundler: Vite

Stack trace

Additional context

I have tested the socks5 proxy setting on Win10, Win11, and Linux, they all work. Just does not work on Android.

[fokx]

I found this is wry:
https://github.com/tauri-apps/wry/blob/8dfeb7650213fc10edbf7b03acc9a95107c7e342/src/lib.rs#L663

  /// Set a proxy configuration for the webview. Supports HTTP CONNECT and SOCKSv5 proxies
  ///
  /// - **macOS**: Requires macOS 14.0+ and the `mac-proxy` feature flag to be enabled.
  /// - **Android / iOS:** Not supported.
  pub proxy_config: Option<ProxyConfig>,

So, socks5 proxy is not supported on Android, right? I think tauri's doc should have this note too.