Browser environment patching toolkit for crawler reverse engineering. v2.1 prototype engine with config-driven architecture, 5-layer defense, seed-deterministic fingerprinting, and document.all access monitoring. Keywords: 补环境, 爬虫逆向, 签名, JSVMP, vm sandbox, fake_env, trace_env, capture_sdk, persistent_signer, Toolkit, fingerprint, 加签.
2026-05-18