self.addEventListener('message', e => { | |
URL.revokeObjectURL(e.data.url); | |
// Registering a new object URL will make absolutely sure that the revocation | |
// has propagated. Without this at least in chrome it is possible for the | |
// below postMessage to arrive at its destination before the revocation has | |
// been fully processed. | |
URL.createObjectURL(new Blob([])); | |
self.postMessage('revoked'); | |
}); |