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36 lines
1.3 KiB
HTML
36 lines
1.3 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta
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name="viewport"
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content="width=device-width, initial-scale=1.0"
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/>
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<title>Child Window</title>
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</head>
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<body>
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<div>我是子窗口</div>
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<button id="sendMsg">点击给父窗口发送信息</button>
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<script>
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let parentWindow;
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// 监听来自父窗口的消息
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window.addEventListener('message', (event) => {
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// 验证消息来源
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if (event.origin === 'https://your-parent-domain.com') {
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console.log('接受父窗口跨域跨标签消息', event.data);
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parentWindow = event.source;
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}
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});
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document.getElementById('sendMsg').onclick = function () {
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// 方式一，必须依赖父窗口先发消息给子窗口
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// parentWindow.postMessage('给父窗口传跨域跨标签消息', 'https://your-parent-domain.com');
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// 方式二，可以直接给父窗口发消息
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window.opener.postMessage('给父窗口传跨域跨标签消息', 'https://your-parent-domain.com');
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};
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</script>
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</body>
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</html>
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