Offline Storage: When 7 KB Equals 7 MB

Gerardo Rodriguez from Cloudfour: While testing a progressive web app for one of our clients, I bumped into a suspicious error in the browser console: DOMException: Quota exceeded. After browsing the app a few more times, it became clear the error would occur after a small number of images were added to the cache storage …

Implementing “Save For Offline” with Service Workers

Una Kravets implemented “Save For Offline” on her blog, using Service Workers. She described the reasoning, process, and code to implement. With “Save For Offline”, if someone is reading your blog on the subway, and loses their Internet connection, they won’t lose their place. If they accidentally click and the browser refreshes, they won’t lose …

The ServiceWorker is coming, look busy!

Look at the apps on your homescreen. Why are they native? Why aren’t they just on the web? Its usually some combination of push messaging, background sync, offline & performance. When native has something the web doesn’t, we should consider it a bug. Let’s have a look at the fixes, focusing on the ServiceWorker. By …

C&A Fashion Like

C&A Brazil: A new initiative called Fashion Like allows people to ‘like’ certain items of clothing on the company’s Facebook page, and these clicks are collated and displayed on the relevant clothes rack in real-time. Customers are thereby able to view the item’s online popularity in the real world to help them make their decision. …