Sometimes, leaving event listeners attached to an object feels like an anti-pattern, but sometimes it's fine. Here's how it works…

Last month we had a service worker meeting at the W3C TPAC conference in Fukuoka. For the first time in a few years, we focused on possible new features and behaviours. Here's a summary:

Figuring out probabilities with JavaScript and (ugh) maths

Can I predict the winners of the 2019 F1 season by looking at the performance of their websites? No. But I'm gonna anyway.

We're thinking of adding a declarative router to service workers, and we want feedback.

How much damage can a malicious package do to a static site, and what can be done about it?

I accidentally discovered a huge browser security bug. Here's what it does, and how I discovered it…

A few days ago there was a lot of chatter about a 'keylogger' built in CSS, but the real problem is thinking that third party content is 'safe'.

How Array.isArray works, and how we can use symbols to create our own type-matching functions.