tauri-plugin-cors-fetch 4.2.0

Enabling Cross-Origin Resource Sharing (CORS) for Fetch Requests within Tauri applications.
docs.rs failed to build tauri-plugin-cors-fetch-4.2.0
Please check the build logs for more information.
See Builds for ideas on how to fix a failed build, or Metadata for how to configure docs.rs builds.
If you believe this is docs.rs' fault, open an issue.
Visit the last successful build: tauri-plugin-cors-fetch-4.1.0

tauri-plugin-cors-fetch

crates.io Download MIT licensed Documentation

An unofficial Tauri plugin that enables seamless cross-origin (CORS) requests by transparently proxying the native fetch API through Tauri's HTTP client.

Features

  • Zero Code Change: Use standard fetch() as you normally would.
  • Transparent Proxying: Automatically hooks into the browser's fetch.
  • Configurable: Granular control over which domains bypass CORS.
  • Multi-platform: Supports Windows, macOS, Linux, iOS, and Android.

Quick Start

1. Install Dependencies

Add the plugin to your Cargo.toml:

# src-tauri
cargo add tauri-plugin-cors-fetch

2. Initialize Plugin

Register the plugin in your Tauri setup:

// src-tauri/src/lib.rs
pub fn run() {
    tauri::Builder::default()
        .plugin(tauri_plugin_cors_fetch::init()) // 👈 here
        .run(tauri::generate_context!())
        .expect("failed to run app");
}

3. Configure Permissions & Settings

Add the required permission to your capability file:

// src-tauri/capabilities/default.json
{
  "permissions": ["cors-fetch:default"]
}

Ensure withGlobalTauri is enabled in tauri.conf.json:

// src-tauri/tauri.conf.json
{
  "app": {
    "withGlobalTauri": true
  }
}

Usage

Once initialized, the plugin automatically hooks into the global fetch. No changes to your frontend code are required:

// This request now bypasses CORS automatically
const response = await fetch("https://api.openai.com");
const data = await response.json();

Configuration

You can fine-tune the behavior via window.CORSFetch.config():

window.CORSFetch.config({
  include: [/^https?:\/\//i], // Patterns to proxy (default: all)
  exclude: ["https://api.openai.com/v1/chat/completions"],
  // Default request options for Tauri HTTP Client
  request: {
    connectTimeout: 30 * 1000, // ms
    maxRedirections: 5,
    proxy: { all: "http://127.0.0.1:7890" },
  },
});

Direct Access APIs

  • window.fetchCORS(url, init): Explicitly use the CORS-bypassing fetch.
  • window.fetchNative(url, init): Use the original browser fetch (subject to CORS).

Limitations

  • Fetch Only: Does not support XMLHttpRequest (XHR).
  • No Streaming: Server-Sent Events (SSE) and response streaming are currently not supported.

License

MIT License © 2024-PRESENT Del Wang