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javascriptbrowserservice-workerbackground-sync

How to verify if background sync is supported by the browser?

I am developing an application that uses service workers to cache HTTP requests from a specific endpoint. These requests should be sent to the server using background sync. I know some browsers are not supported, but I would like to warn my users that this feature will not be available. To do this, I need some way of identifying whether or not the browser has background sync support.

Solution 
  • if ('serviceWorker' in navigator && 'SyncManager' in window) {
   // service worker stuffs here
} else {
  console.error('Background sync not supported');
}