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Code Issues Releases Wiki Activity

talk.html: handle sw controller being null

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Kushagra Gour
2019-03-01 11:50:05 +05:30
parent 713536d9ab
commit 1ae0a98831
1 changed files with 7 additions and 2 deletions
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9
preview/talk.html
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@@ -21,7 +21,7 @@ Hello
/* eslint-disable default-case */ /* eslint-disable default-case */
switch (installingWorker.state) { switch (installingWorker.state) {
case 'installed': case 'installed':
console.log('New or updated content is available.'); console.log('New or updated content is available.', navigator.serviceWorker.controller);
break; break;
case 'redundant': case 'redundant':
@@ -46,7 +46,12 @@ Hello
console.log('controller', navigator.serviceWorker.controller) console.log('controller', navigator.serviceWorker.controller)
window.addEventListener('message', (e) => { window.addEventListener('message', (e) => {
console.log(88, e.data); console.log(88, e.data);
navigator.serviceWorker.controller.postMessage(e.data); if (navigator.serviceWorker.controller) {
navigator.serviceWorker.controller.postMessage(e.data);
} else {
alert('Ooops, seems like your preview is denying updation. How about we slap a quick refresh on him?');
location.reload();
}
}); });
</script> </script>