Tom’s videos are so good! Did you see his excellent in-depth piece on copyright?
This one is all about APIs and the golden age of Web 2.0 when we were free to create mashups.
It pairs nicely with a piece by another Tom from a couple of years back on the joy of Twitterbots.
The cloud gives us collaboration, but old-fashioned apps give us ownership. Can’t we have the best of both worlds?
We would like both the convenient cross-device access and real-time collaboration provided by cloud apps, and also the personal ownership of your own data embodied by “old-fashioned” software.
This is a very in-depth look at the mindset and the challenges involved in building truly local-first software—something that Tantek has also been thinking about.
Mike sees the church of JS-first ignoring the lessons to be learned from the years of experience accumulated by CSS practitioners.
As the responsibilities of front-end developers have become more broad, some might consider the conventions outlined here to be not worth following. I’ve seen teams spend weeks planning the right combination of framework, build tools, workflows and patterns only to give zero consideration to the way they architect UI components. It’s often considered the last step in the process and not worthy of the same level of consideration.
It’s important! I’ve seen well-planned project fail or go well over budget because the UI architecture was poorly planned and became un-maintainable as the project grew.
I just love the way that Laurie Penny writes.
In the end, it will not be butchery. Instead it will be bakery, as everyone has apparently decided that the best thing to do when the world lurches sideways is learn to make bread. Yeast is gone from the shops. Even I have been acting out in the kitchen, although my baked goods are legendarily dreadful. A friend and former roommate, who knows me well, called from Berlin to ask if I had “made the terrible, horrible biscuits yet.” These misfortune cookies tend to happen at moments of such extreme stress that those around me feel obliged to eat them. They say that if you can make a cake, you can make a bomb; if the whole thing implodes, my job will not be in munitions.
We should celebrate our hobbies for the joy-giving activities they are, and recognize that they don’t need to become anything bigger than that. And of course that’s not to say they those hobbies can’t turn into something bigger — it’s incredible when your passions and your occupation overlap — but it should be because you want to rather than that you feel pressured to. Not every activity you do needs to become a big official thing.
Apple aren’t the best at developer relations. But, bad as their communications can be, I’m willing to cut them some slack. After all, they’re not used to talking with the developer community.
John Wilander wrote a blog post that starts with some excellent news: Full Third-Party Cookie Blocking and More. Safari is catching up to Firefox and disabling third-party cookies by default. Wonderful! I’ve had third-party cookies disabled for a few years now, and while something occassionally breaks, it’s honestly a pretty great experience all around. Denying companies the ability to track users across sites is A Good Thing.
In the same blog post, John said that client-side cookies will be capped to a seven-day lifespan, as previously announced. Just to be clear, this only applies to client-side cookies. If you’re setting a cookie on the server, using PHP or some other server-side language, it won’t be affected. So persistent logins are still doable.
Then, in an audacious example of burying the lede, towards the end of the blog post, John announces that a whole bunch of other client-side storage technologies will also be capped to seven days. Most of the technologies are APIs that, like cookies, can be used to store data: Indexed DB, Local Storage, and Session Storage (though there’s no mention of the Cache API). At the bottom of the list is this:
Service Worker registrations
Okay, let’s clear up a few things here (because they have been so poorly communicated in the blog post)…
The seven day timer refers to seven days of Safari usage, not seven calendar days (although, given how often most people use their phones, the two are probably interchangable). So if someone returns to your site within a seven day period of using Safari, the timer resets to zero, and your service worker gets a stay of execution. Lucky you.
This only applies to Safari. So if your site has been added to the home screen and your web app manifest has a value for the “display” property like “standalone” or “full screen”, the seven day timer doesn’t apply.
That piece of information was missing from the initial blog post. Since the blog post was updated to include this clarification, some people have taken this to mean that progressive web apps aren’t affected by the upcoming change. Not true. Only progressive web apps that have been added to the home screen (and that have an appropriate “display” value) will be spared. That’s a vanishingly small percentage of progressive web apps, especially on iOS. To add a site to the home screen on iOS, you need to dig and scroll through the share menu to find the right option. And you need to do this unprompted. There is no ambient badging in Safari to indicate that a site is installable. Chrome’s install banner isn’t perfect, but it’s better than nothing.
Just a reminder: a progressive web app is a website that
Adding to the home screen is something you can do with a progressive web app (or any other website). It is not what defines progressive web apps.
In any case, this move to delete service workers after seven days of using Safari is very odd, and I’m struggling to find the connection to the rest of the blog post, which is about technologies that can store data.
As I understand it, with the crackdown on setting third-party cookies, trackers are moving to first-party technologies. So whereas in the past, a tracking company could tell its customers “Add this script element to your pages”, now they have to say “Add this script element and this script file to your pages.” That JavaScript file can then store a unique idenitifer on the client. This could be done with a cookie, with Local Storage, or with Indexed DB, for example. But I’m struggling to understand how a service worker script could be used in this way. I’d really like to see some examples of this actually happening.
The best explanation I can come up with for this move by Apple is that it feels like the neatest solution. That’s neat as in tidy, not as in nifty. It is definitely not a nifty solution.
If some technologies set by a specific domain are being purged after seven days, then the tidy thing to do is purge all technologies from that domain. Service workers are getting included in that dragnet.
Now, to be fair, browsers and operating systems are free to clean up storage space as they see fit. Caches, Local Storage, Indexed DB—all of those are subject to eventually getting cleaned up.
So I was curious. Wanting to give Apple the benefit of the doubt, I set about trying to find out how long service worker registrations currently last before getting deleted. Maybe this announcement of a seven day time limit would turn out to be not such a big change from current behaviour. Maybe currently service workers last for 90 days, or 60, or just 30.
Nope:
There was no time limit previously.
This is not a minor change. This is a crippling attack on service workers, a technology specifically designed to improve the user experience for return visits, whether it’s through improved performance or offline access.
I wouldn’t be so stunned had this announcement come with an accompanying feature that would allow Safari users to know when a website is a progressive web app that can be added to the home screen. But Safari continues to ignore the existence of progressive web apps. And now it will actively discourage people from using service workers.
If you’d like to give feedback on this ludicrous development, you can file a bug (down in the cellar in the bottom of a locked filing cabinet stuck in a disused lavatory with a sign on the door saying “Beware of the Leopard”).
No doubt there will still be plenty of Apple apologists telling us why it’s good that Safari has wished service workers into the cornfield. But make no mistake. This is a terrible move by Apple.
I will say this though: given The Situation we’re all living in right now, some good ol’ fashioned Hot Drama by a browser vendor behaving badly feels almost comforting.
This is my favourite website now.
Cargo cultism is not a strategy:
Apple and Google get it wrong just as often as the rest of us.
Here’s a nifty little progressive web app that Trys whipped up so that Clearlefties running workshops remotely still get to have their beloved countdown clock.
Amber runs through some HTML elements that help you provide semantic information—and accessibility—for your website: headings, paragraphs, lists, and more:
You may be aware that ARIA roles are often used with HTML elements. I haven’t written about them here, as it’s good to see how HTML written without ARIA can still be accessible.
Checked in at Queen’s Park. Getting some fresh air — with Jessica
Checked in at The Hartington. Last chance for some tunes?
A history of typesetting from movable type to variable fonts.
This is not an image format. This is made of empty elements styled with CSS. (See for yourself by changing the colour value of the sun.)
Checked in at Jolly Brewer. Tunes! 🎶🎻🎶 — with Jessica
A 1992 paper by Tim Berners-Lee, Robert Cailliau, and Jean-Françoise Groff.
The W3 project is not a research project, but a practical plan to implement a global information system.
The best podcast of last year is back for another season, this time on the Apollo 13 mission.
A really nice open-source font-previewing tool for the Mac.
Checked in at Cartwheel Cafe and Roastery. with Remy
Checked in at 200 Degrees Coffee