v2.48.2

liriliri/ayav2.48.2Mar 25, 2026by github-actions[bot]

AI Summary

Adds support for parallel crawl backends, allowing users to race multiple browser engines against each other to select the best HTML result.

Key Highlights

Race alternative browser engines (LightPanda, Servo) alongside the primary crawl.
Zero overhead when parallel backends are disabled.
Custom quality validator for HTML selection and full network interception parity with Chrome.
Support for custom backends via `BackendEngine::Custom`.

New Features

Parallel Crawl Backends
Custom backend support
Quality validator
Network interception parity

Full Release Notes

Race alternative browser engines alongside your primary crawl. Best HTML wins.

```rust
use spider::configuration::{BackendEndpoint, BackendEngine, ParallelBackendsConfig};

let mut website = Website::new("https://example.com");
website.configuration.parallel_backends = Some(ParallelBackendsConfig {
    backends: vec![BackendEndpoint {
        engine: BackendEngine::LightPanda,
        endpoint: Some("ws://127.0.0.1:9222".to_string()),
        binary_path: None,
        protocol: None,
    }],
    ..Default::default()
});
website.crawl().await;
// page.backend_source → "primary" | "lightpanda" | "servo" | "custom"
```

Features: `lightpanda`, `servo`, `parallel_backends_full`, custom backends via `BackendEngine::Custom`.

Zero overhead when disabled, anti-fingerprint jitter, auto-disable on failures, custom quality validator, full network interception parity with Chrome.