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ad7d593761
Differential Revision: https://phabricator.services.mozilla.com/D25778 --HG-- extra : moz-landing-system : lando
13 lines
313 B
JavaScript
13 lines
313 B
JavaScript
self.addEventListener("message", async e => {
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let clients = await self.clients.matchAll({type: "window", includeUncontrolled: true});
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let hasWindow = false;
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for (let client of clients) {
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if (e.data == client.url) {
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hasWindow = true;
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break;
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}
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}
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e.source.postMessage(hasWindow);
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});
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