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12 lines
No EOL
443 B
JavaScript
12 lines
No EOL
443 B
JavaScript
const channel = new BroadcastChannel('tab')
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channel.postMessage('second-tab')
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// note that listener is added after posting the message
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channel.addEventListener('message', (msg) => {
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if (msg.data === 'second-tab') {
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// message received from 2nd tab
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document.getElementById('overlay').classList.add('loading')
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alert('Cannot open multiple instances. You can use AIO here by reloading the page.')
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}
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}); |