- try {
- if (
- navigator.serviceWorker &&
- navigator.serviceWorker.getRegistrations &&
- location.protocol === 'https:'
- ) {
- // remove all service workers
- navigator.serviceWorker
- .getRegistrations()
- .then(function (registrations) {
- if (registrations && registrations.length) {
- console.log('unregistering service workers');
- registrations.forEach(function (registration) {
- registration.unregister();
- });
- }
- });
- // clear caches
- if (caches) {
- caches.keys().then(function (keyList) {
- if (keyList && keyList.length) {
- console.log('deleting caches');
- keyList.forEach(function (key) {
- if (key && key.indexOf('druntime') === 0) {
- caches.delete(key);
- }
- });
- }
- });
- }
- }
- } catch (err) {
- // not a secured location
- }
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