我在vscode-webview中内嵌antdv的官网，希望能够支持copy事件的消息传递

[Simon-He95]

希望能加上这样一段代码

    document.addEventListener('keydown', e => {
        if ((e.metaKey || e.ctrlKey) && e.key === 'c') {
          const selection = document.getSelection();
          if (!selection || !selection.toString()) return;
          const text = selection.toString();
          window.parent.postMessage({ eventType: 'copy', text }, '*');
        }
    });