Note archive: March, 2020

Playing The High Part Of The Road (jig) on mandolin:

https://thesession.org/tunes/183

https://www.youtube.com/watch?v=kC7M7PTC4Z8

Thank you for listening!

❤️

Thank you very much, Brian—glad you like ’em!

Might be a good use for the pre element to preserve formatting.

In fact, that very use case is mentioned in the spec:

https://html.spec.whatwg.org/#the-pre-element

Violent Femmes, Blister In The Sun?

Consequently, nobody on iOS—other than devs like you and me—ever adds any websites to their home screens (progressive web apps or otherwise).

Chrome, Opera and Samsung Internet “promote” progressive web apps and encourage users to add them to their home screen (becuase—thanks to the manifest file—once opened from there, they behave just like native apps). Safari does nothing.

It wouldn’t. I don’t understand what you’re asking. The issue is with the sites (the vast majority) that aren’t being added to the home screen—they’re the ones being hobbled by this 7 day deletion.

Playing The Earl’s Chair (reel) on mandolin:

https://thesession.org/tunes/221

https://www.youtube.com/watch?v=_MZ5mh-PwP0

Reading The Fabric Of Reality by David Deutsch.

I felt it right there in my chest, the cool clutch of a cliché: my heart sank.

— Machines Like Me

My radio, with its irregular blobs of solder on a board, appears no less a wonder than consciousness itself arising from matter.

— Machines Like Me

Oh, nice! I’ll add that site to the links section of The Session:

https://thesession.org/links

Enjoy!

I’m so sorry, Katie.

They’re both asynchronous actions—using cache and using fetch—and the waitUntil ensures that when one of them is done, the other still carries on. It doesn’t mean that one waits until the other is done.

The return part still happens first though. The waitUntil ensures that the service worker doesn’t “hang up” while you’re getting the fresh version from the network, but while that’s happening, the user has been served the cached file.

Sure. Fire away.

It’s another clear night tonight and the @Space_Station will pass overhead at 7:42pm.

Look to the skies, my friends!

You’re just like Tom Cruise in that film!…

Rain Man.

The Raven Tower by Ann Leckie.

Binti by Nnedi Okorafor.

Rosewater by Tade Thompson.

Literally everyone on my street came to their doors at 8pm to cheer and clap for the NHS and I think I might have a little something in my eye. #ClapForCarers

Explain to me how a service worker could be abused, given its same-origin policy.

I think when I (or someone else) says the word “enhancement” what you hear is “just an enhancement”—I think that may be at the heart of your Colombo-like feigned confusion.

I very much hope that Safari devs will be reasonable and not go ahead with the drastic hobbling of service workers that they’re planning:

https://adactio.com/journal/16619

Brian, there’s a world of difference between something being a useful enhancement you can add to any website, and something that’s so hobbled as to be not worth your time.

That’s only true if the website has been added to the home screen (which is very, very rare). Most websites using service workers (and almost all progressive web apps) are badly affected by this drastic change.

Join me at 4pm UK time for Quarantine Book Club:

https://www.eventbrite.com/e/quarantine-book-club-jeremy-keith-tickets-100923242134

We can chat about Resilient Web Design. Or I can just play mandolin. Your call.

Zarjaz!

I do not. I think it is the furthest thing from “fine”.

That’s right. And on iOS in particular, a vanishingly small number of offline apps are ever added to the home screen.

A progressive web app means HTTPS+service worker+manifest. It does not mean “added to home screen”.

Not true. They aren’t deleting service workers for sites added to the home screen. That’s a vanishingly small percentage of progressive web apps.

Added to home screen != progressive web app.

Thank you for the response.

So this change isn’t minor—it’s a massive kick in the teeth for service workers.

(Also, I need help understanding how a third party could use service worker registrations …which have a same-origin scope.)

Just about 10 minutes ’till the next ISS flyover: 7:40pm.

People of southern England—look to the skies!

Yes! 7:40pm this evening. Should be good one.

Can you clarify what the previous time limit was for service workers on Safari before deletion?

(Or was there no time limit?)

I’m trying to find out what/if the time limit on service worker registrations was in Safari before this change to 7 days.

Was it a set amount of days? Was it unbounded? @johnwilander?

(Does Chrome or Firefox do anything like this?)

If you don’t know the answer, can you point me to someone who does?

Aw, thank you! 🎶

I’m trying to understand what the expiration time was for service workers across the board before this change to 7 days. Was it 30 days? 90? Indefinite?

What does “classified domains” mean in this context?

Does the 7 day (previously 30 day) time period not apply across the board to any domain that registers a service worker?

With everyone using Google Hangouts right now, I bet loads of people are seeing your lovely work on the Canvas Project:

https://canvasproject.withgoogle.com/kyle-bean/

Hey John, quick question: what was the time period for deregistering service workers (and emptying caches) before this change to 7 days?

(I have it in the back of my mind it was something like 30 days without engagement—is that right?)

You must tweeting from an alternate universe train, right? Because you’re on your way to Manchester to run a workshop on SVG animations tomorrow.

Yes, I linked to that in my post (at the end).

I’ll be taking part in Quarantine Book Club discussing ResilientWebDesign.com this Thursday at 4pm UTC:

https://www.quarantinebookclub.com/#keith

2020-03-26T16:00:00

Grab a ticket for $5 (or free if you can’t spare $5 right now).

What a lovely sight! Skimming along between Venus and Orion.

It will appear 10° above west-southwest, and disappear 25° above east.

Fellow Brightonians: there’s another ISS flyover at 7:36pm this evening—should be nice and clear.

Let’s pop outside for a few minutes to (individually) watch it go overhead.

Ugh! Mondays! Am I right?

That was a lovely fly-past! @AstroDrewMorgan @Astro_Jessica Oleg Skripochka

Those astro/cosmonauts know a thing or two about self isolating…

https://www.nasa.gov/feature/an-astronaut-s-tips-for-living-in-space-or-anywhere

People of Brighton: it should be clear skies when the @Space_Station passes over at 8:23pm.

Let’s all go outside and look up at people doing some real social distancing.

(This is something we can do together while keeping our distance.)

I’m making little tweaks to my site today too—it feels good. I’ll do a little write-up later too.

Looking forward to seeing your RSS feed light up with new articles!

Just a heads-up that the URLs for liking an image aren’t resolving if client-side JavaScript isn’t available (e.g. /like/6).

❤️

Y’know what? I’m going to update the bookmarklet in my original post to use your code (if that’s cool with you, daddy-o).

Noice!

Day four of not leaving the house.

I may have resorted to cannibalism a tad early.

That was a work chat!

cc. @TrysMudford @CleverDigit @AlisPie

We are all Julian Assange now.

Because of the self isolation, I mean. Not, y’know, the rapiness.

Not All Self-isolating Men.

I’ll see myself out.

No, wait! I won’t!

Knock knock.

Who’s there?

Control freak—now you say “Control freak who?”

That is seriously brilliant.

Reading Machines Like Me by Ian McEwan.

Playing The Luachrachán jig on mandolin:

https://thesession.org/tunes/1851

https://www.youtube.com/watch?v=MdAHrhZwNd8

Well, now I know what I’m going to be listening to again during my self isolation.

Here’s a list of resources I put together for someone starting out in web development:

https://adactio.com/journal/15782

This day last year was filled with travel—from Geneva to London—to celebrate the web at 30:

https://adactio.com/journal/14948

This year, there’s a lot less travelling.

Anyway. Happy 31st birthday to Information Management: A Proposal!

Eating toast with @Rem.

Everyone is being so critical of Trump’s handling of the situation with COVID-19, but honestly, if I had the virus, I’d want to shake him by the hand.

Going to Nottingham. brb

See you later!

Yes! The Age Of Wonder is my favourite book on the history of science.

I properly LOL’d at this …a nice warm-hearted, non-snarky LOL.

From a BBC News story:

Facebook is closing its London office for the weekend …Staff members have been told to work from home until Monday.

Wait.

Muchas, muchas gracias, Vorgan!

Let me know if you come up with a good job title for that because it me.

Reading A Short History Of Irish Traditional Music by Gearóid Ó hAllmhuráin.

It was a comforting myth, and one I embraced because I had seen comfort, without realising it was only a myth.

— Abolish Silicon Valley

Julian Gough! He used to be the singer in a most excellent band called Toasted Heretic many years ago, when we both lived in Galway.