Programmatically update service worker if update()

问题:

How can I programmatically update service worker since ServiceWorkerRegistration.update() has not been implemented in Chrome yet? Is there an alternative?

回答1:

I assume you got this by now but I think you want serviceWorker.skipWaiting()

回答2:

Thr best workaround seems to be to force update by changing checksum of the service worker file by some simple backend code (it can be like last commented line with microtime), which will be detected by browser

回答3:

From the spec.

if ('serviceWorker' in navigator) {
  navigator.serviceWorker.register('/sw-test/sw.js', {scope: 'sw-test'}).then(function(registration) {
    // registration worked
    console.log('Registration succeeded.');
    button.onclick = function() {
      registration.update();
    }
  }).catch(function(error) {
    // registration failed
    console.log('Registration failed with ' + error);
  });
};