上下文桥（Context Bridge）
介绍（Introduction）
上下文桥是一种支持不同 JavaScript 执行环境之间相互调用的跨上下文通信机制，包括跨线程、跨窗口、跨网络等场景。
Context Bridge is a cross-context communication mechanism that supports mutual invocation between different JavaScript execution environments, including scenarios such as cross-thread, cross-window, cross-network, etc.