Tags: apps



Thursday, September 9th, 2021

Chrome is the new Safari. And so are Edge and Firefox. – Hello my name is Niels Leenheer

You may not realise that all browsers on iOS are required to use the same rendering engine as Safari. On other platforms, this is not the case.

A terrific in-depth look at the frustrating state of the web on iOS.

So it’s not just one browser that falls behind. It’s all browsers on iOS. The whole web on iOS falls behind. And iOS has become so important that the entire web platform is being held back as a result.

And this damning assessment is mercifully free of conspiracy theories.

The Safari and Chrome team both want to make the web safer and work hard to improve the web. But they do have different views on what the web should be.

Google is focussing on improving the web by making it more capable.

Safari seems to focus on improving the web as it currently is.

Read the whole thing—it’s excellent!

There can only be one proper solution: Apple needs to open up their App Store to browsers with other rendering engines. Scrap rule 2.5.6 and allow other browsers on iOS and let them genuinely compete. Even though Apple has been forced to compromise on some App Store rules, I have little hope for this to happen.

Why We Create Progressive Web Apps: A Conversation with Jeremy Keith

This is a really nice write-up by Sydney of the chat we had on her podcast.

Wednesday, September 8th, 2021

Decoded: The When, Why, and Why Not of Progressive Web Apps

I really enjoyed talking to Sydney Lai about progressive web apps, resilient web design, and all my other hobby horses.

Alas, there’s no transcript and I can’t find a direct link to the RSS feed or the individual audio file on the podcast website so it’s not huffduffable.

Tuesday, September 7th, 2021

Bruce Lawson’s personal site  : Briefing to the UK Competition and Markets Authority on Apple’s iOS browser monopoly and Progressive Web Apps

Following on from Stuart’s, here’s Bruce’s presentation to the CMA on Apple’s monopolistic practices and hostility to progressive web apps.

as days pass by — Talking to the Competition and Markets Authority about Apple

What I would like is that I can give users the best experience on the web, on the best mobile hardware. That best mobile hardware is Apple’s, but at the moment if I want to choose Apple hardware I have to choose a sub-par web experience. Nobody can fix this other than Apple, and there are a bunch of approaches that they could take — they could make Safari be a best-in-class experience for the web, or they could allow other people to collaborate on making the browser best-in-class, or they could stop blocking other browsers from their hardware. People have lots of opinions about which of these, or what else, could and should be done about this; I think pretty much everyone thinks that something should be done about it, though.

The Single-Page-App Morality Play – Baldur Bjarnason

I keep seeing Single-Page-Apps with huge JS files that only, in terms of concrete User Experience (UX) benefits, deliver client-side validation of forms plus analytics. Apps rarely leverage the potential of a Single-Page-App. It’s still just the same ‘click, wait for load’ navigation cycle. Same as the one you get with Multi-Page-Apps. Except buggier and with a much slower initial loading time.

When you look at performance, cross-platform and mobile support, reliability, and accessibility, nearly every Single-Page-App you can find in the wild is a failure on multiple fronts.

Replacing those with even a mediocre Multi-Page-App is generally going to be a substantial win. You usually see improvements on all of the issues mentioned above. You get the same general UX except with more reliable loading, history management, and loading features—provided by the browser.

Before you dismiss Baldur as a hater based on what I’ve just quoted, you should really read the whole article. The issue he points to is not with the technical architecture of single page apps, but with management.

Single-Page-Apps can be fantastic. Most teams will mess them up because most teams operate in dysfunctional organisations.

A lot of what he says really resonates with me. Over and over again I’ve seen projects where the technical decison around which monolithic client-side JavaScript framework to use has been made even before a problem has been defined.

Baldur’s conclusion chimes a lot with what I’ve been saying in conference talks this year: the biggest challenges facing the web are not technical in nature.

The biggest hindrance to the web’s progress isn’t non-expert developers, tooling, libraries, Single-Page-Apps, or Multi-Page-Apps.

It’s always humans.

Tuesday, August 3rd, 2021

How To Build Resilient JavaScript UIs — Smashing Magazine

The opening paragraphs of this article should be a mantra recited by every web developer before they begin their working day:

Things on the web can break — the odds are stacked against us. Lots can go wrong: a network request fails, a third-party library breaks, a JavaScript feature is unsupported (assuming JavaScript is even available), a CDN goes down, a user behaves unexpectedly (they double-click a submit button), the list goes on.

Fortunately, we as engineers can avoid, or at least mitigate the impact of breakages in the web apps we build. This however requires a conscious effort and mindset shift towards thinking about unhappy scenarios just as much as happy ones.

I love, love, love the emphasis on reducing assumptions:

Taking a more defensive approach when writing code helps reduce programmer errors arising from making assumptions. Pessimism over optimism favours resilience.

Hell, yeah!

Accepting the fragility of the web is a necessary step towards building resilient systems. A more reliable user experience is synonymous with happy customers. Being equipped for the worst (proactive) is better than putting out fires (reactive) from a business, customer, and developer standpoint (less bugs!).

Friday, July 30th, 2021

For developers, Apple’s Safari is crap and outdated – Perry Sun | Blog

Apple dragged their feet in adding support for PWAs in Safari, and when they finally did, limited the capabilities of a PWA so that native-like app functionality wouldn’t be possible, like notifications or a home screen icon shortcut – to name just a few of the many restrictions imposed by Apple.

But it goes beyond that. On iOS, the only web rendering engine allowed is Apple’s own WebKit, which runs Safari. Third-party iOS browsers such as Chrome can only use WebKit, not their own engines (as would be permitted in Windows, Android, or macOS). And it’s WebKit that governs PWA capabilities.

Safari is very good web browser, delivering fast performance and solid privacy features.

But at the same time, the lack of support for key web technologies and APIs has been both perplexing and annoying at the same time.

The enormous popularity of iOS makes it all the more annoying that Apple continues to hold back developers from being able to create great experiences over the web that work across all platforms.

Tuesday, June 29th, 2021

Safari 15

If you download Safari Technology Preview you can test drive features that are on their way in Safari 15. One of those features, announced at Apple’s World Wide Developer Conference, is coloured browser chrome via support for the meta value of “theme-color.” Chrome on Android has supported this for a while but I believe Safari is the first desktop browser to add support. They’ve also added support for the media attribute on that meta element to handle “prefers-color-scheme.”

This is all very welcome, although it does remind me a bit of when Internet Explorer came out with the ability to make coloured scrollbars. I mean, they’re nice features’n’all, but maybe not the most pressing? Safari is still refusing to acknowledge progressive web apps.

That’s not quite true. In her WWDC video Jen demonstrates how you can add a progressive web app like Resilient Web Design to your home screen. I’m chuffed that my little web book made an appearance, but when you see how you add a site to your home screen in iOS, it’s somewhat depressing.

The steps to add a website to your home screen are:

  1. Tap the “share” icon. It’s not labelled “share.” It’s a square with an arrow coming out of the top of it.
  2. A drawer pops up. The option to “add to home screen” is nowhere to be seen. You have to pull the drawer up further to see the hidden options.
  3. Now you must find “add to home screen” in the list
  • Copy
  • Add to Reading List
  • Add Bookmark
  • Add to Favourites
  • Find on Page
  • Add to Home Screen
  • Markup
  • Print

It reminds of this exchange in The Hitchhiker’s Guide To The Galaxy:

“You hadn’t exactly gone out of your way to call attention to them had you? I mean like actually telling anyone or anything.”

“But the plans were on display…”

“On display? I eventually had to go down to the cellar to find them.”

“That’s the display department.”

“With a torch.”

“Ah, well the lights had probably gone.”

“So had the stairs.”

“But look you found the notice didn’t you?”

“Yes,” said Arthur, “yes I did. It was on display in the bottom of a locked filing cabinet stuck in a disused lavatory with a sign on the door saying ‘Beware of The Leopard.’”

Safari’s current “support” for adding progressive web apps to the home screen feels like the minimum possible …just enough to use it as a legal argument if you happen to be litigated against for having a monopoly on app distribution. “Hey, you can always make a web app!” It’s true in theory. In practice it’s …suboptimal, to put it mildly.

Still, those coloured tab bars are very nice.

It’s a little bit weird that this stylistic information is handled by HTML rather than CSS. It’s similar to the meta viewport value in that sense. I always that the plan was to migrate that to CSS at some point, but here we are a decade later and it’s still very much part of our boilerplate markup.

Some people have remarked that the coloured browser chrome can make the URL bar look like part of the site so people might expect it to operate like a site-specific search.

I also wonder if it might blur “the line of death”; that point in the UI where the browser chrome ends and the website begins. Does the unified colour make it easier to spoof browser UI?

Probably not. You can already kind of spoof browser UI by using the right shade of grey. Although the removal any kind of actual line in Safari does give me pause for thought.

I tend not to think of security implications like this by default. My first thought tends to be more about how I can use the feature. It’s only after a while that I think about how bad actors might abuse the same feature. I should probably try to narrow the gap between those thoughts.

Friday, June 4th, 2021

Two articles on SPA or SPA-like sites vs alternatives — Piper Haywood

On framework-dependency and longevity:

So it’s not even so much about being wary of React or Vue, it’s about not making assumptions, being cautious and cognizant of future needs or restrictions when proposing a tech stack. Any tech stack you choose will ultimately become a ball-and-chain, not just those based on JavaScript frameworks. It’s just that the ball can sometimes be heavier than it needed to be, and you can anticipate that with a little foresight.

Wednesday, May 12th, 2021

The Linear Oppression of Note-taking Apps

I think this explains why Kinopio resonates with me.

Tuesday, March 30th, 2021

The principle of most availability

I’ve been thinking some more about the technical experience of booking a vaccination apointment and how much joy it brought me.

I’ve written before about how I’ve got a blind spot for the web so it’s no surprise that I was praising the use of a well marked-up form, styled clearly, and unencumbered by unnecessary JavaScript. But other technologies were in play too: Short Message Service (SMS) and email.

All of those technologies are platform-agnostic.

No matter what operating system I’m using, or what email software I’ve chosen, email works. It gets more complicated when you introduce HTML email. My response to that is the same as the old joke; you know the one: “Doctor, it hurts when I do this.” (“Well, don’t do that.”)

No matter what operating system my phone is using, SMS works. It gets more complicated when you introduce read receipts, memoji, or other additions. See my response to HTML email.

Then there’s the web. No matter what operating system I’m using on a device that could be a phone or a tablet or a laptop or desktop tower, and no matter what browser I’ve chosen to use, the World Wide Web works.

I originally said:

It feels like the principle of least power in action.

But another way of rephrasing “least power” is “most availability.” Technologies that are old, simple, and boring tend to be more widely available.

I remember when software used to come packaged in boxes and displayed on shelves. The packaging always had a list on the side. It looked like the nutritional information on a food product, but this was a list of “system requirements”: operating system, graphics card, sound card, CPU. I never liked the idea of system requirements. It felt so …exclusionary. And for me, the promise of technology was liberation and freedom to act on my own terms.

Hence my soft spot for the boring and basic technologies like email, SMS, and yes, web pages. The difference with web pages is that you can choose to layer added extras on top. As long as the fundamental functionality is using universally-supported technology, you’re free to enhance with all the latest CSS and JavaScript. If any of it fails, that’s okay: it falls back to a nice solid base.

Alas, many developers don’t build with this mindset. I mean, I understand why: it means thinking about users with the most boring, least powerful technology. It’s simpler and more exciting to assume that everyone’s got a shared baseline of newer technology. But by doing that, you’re missing out on one of the web’s superpowers: that something served up at the same URL with the same underlying code can simultaneously serve people with older technology and also provide a whizz-bang experience to people with the latest and greatest technology.

Anyway, I’ve been thinking about the kind of communication technologies that are as universal as email, SMS, and the web.

QR codes are kind of heading in that direction, although I still have qualms because of their proprietary history. But there’s something nice and lo-fi about them. They’re like print stylesheets in reverse (and I love print stylesheets). A funky little bridge between the physical and the digital. I just wish they weren’t so opaque: you never know if scanning that QR code will actually take you to the promised resource, or if you’re about to rickroll yourself.

Telephone numbers kind of fall into the same category as SMS, but with the added option of voice. I’ve always found the prospect of doing something with, say, Twilio’s API more interesting than building something inside a walled garden like Facebook Messenger or Alexa.

I know very little about chat apps or voice apps, but I don’t think there’s a cross-platform format that works with different products, right? I imagine it’s like the situation with native apps which require a different codebase for each app store and operating system. And so there’s a constant stream of technologies that try to fulfil the dream of writing once and running everywhere: React Native, Flutter.

They’re trying to solve a very clear and obvious problem: writing the same app more than once is really wasteful. But that’s the nature of the game when it comes to runtime-specific apps. The only alternative is to either deliberately limit your audience …or apply the principle of least power/most availability.

The wastefulness of having to write the same app for multiple platforms isn’t the only thing that puts me off making native apps. The exclusivity works in two directions. There’s the exclusive nature of the runtime that requires a bespoke codebase. There’s also the exclusive nature of the app store. It feels like a return to shelves of packaged software with strict system requirements. You can’t just walk in and put your software on the shelf. That’s the shopkeeper’s job.

There is no shopkeeper for the World Wide Web.

Idle Sunday thoughts about web trends | Studio Tendra

Six years old. Still very astute. Still very true.

Saturday, February 27th, 2021

The web is something different - daverupert.com

The web is so much bigger than the little boxes we try to put it in. The web is good at many things and not great (yet) at others. The web is a snowball rolling down hill, absorbing other technologies along the way. The web is an interactive window across space and time, a near instant connection to anyone on the planet. The web is something different. I wish we’d see the web more for itself, not defined by its nearest neighbor or navel-gazing over some hypothetical pathway we could have gone down decades ago.

Wednesday, November 11th, 2020

Upgrades and polyfills

I started getting some emails recently from people having issues using The Session. The issues sounded similar—an interactive component that wasn’t, well …interacting.

When I asked what device or browser they were using, the answer came back the same: Safari on iPad. But not a new iPad. These were older iPads running older operating systems.

Now, remember, even if I wanted to recommend that they use a different browser, that’s not an option:

Safari is the only browser on iOS devices.

I don’t mean it’s the only browser that ships with iOS devices. I mean it’s the only browser that can be installed on iOS devices.

You can install something called Chrome. You can install something called Firefox. Those aren’t different web browsers. Under the hood they’re using Safari’s rendering engine. They have to.

It gets worse. Not only is there no choice when it comes to rendering engines on iOS, but the rendering engine is also tied to the operating system.

If you’re on an old Apple laptop, you can at least install an up-to-date version of Firefox or Chrome. But you can’t install an up-to-date version of Safari. An up-to-date version of Safari requires an up-to-date version of the operating system.

It’s the same on iOS devices—you can’t install a newer version of Safari without installing a newer version of iOS. But unlike the laptop scenario, you can’t install any version of Firefox of Chrome.

It’s disgraceful.

It’s particularly frustrating when an older device can’t upgrade its operating system. Upgrades for Operating system generally have some hardware requirements. If your device doesn’t meet those requirements, you can’t upgrade your operating system. That wouldn’t matter so much except for the Safari issue. Without an upgraded operating system, your web browsing experience stagnates unnecessarily.

For want of a nail

  • A website feature isn’t working so
  • you need to upgrade your browser which means
  • you need to upgrade your operating sytem but
  • you can’t upgrade your operating system so
  • you need to buy a new device.

Apple doesn’t allow other browsers to be installed on iOS devices so people have to buy new devices if they want to use the web. Handy for Apple. Bad for users. Really bad for the planet.

It’s particularly galling when it comes to iPads. Those are exactly the kind of casual-use devices that shouldn’t need to be caught in the wasteful cycle of being used for a while before getting thrown away. I mean, I get why you might want to have a relatively modern phone—a device that’s constantly with you that you use all the time—but an iPad is the perfect device to just have lying around. You shouldn’t feel pressured to have the latest model if the older version still does the job:

An older tablet makes a great tableside companion in your living room, an effective e-book reader, or a light-duty device for reading mail or checking your favorite websites.

Hang on, though. There’s another angle to this. Why should a website demand an up-to-date browser? If the website has been built using the tried and tested approach of progressive enhancement, then everyone should be able to achieve their goals regardless of what browser or device or operating system they’re using.

On The Session, I’m using progressive enhancement and feature detection everywhere I can. If, for example, I’ve got some JavaScript that’s going to use querySelectorAll and addEventListener, I’ll first test that those methods are available.

if (!document.querySelectorAll || !window.addEventListener) {
  // doesn't cut the mustard.

I try not to assume that anything is supported. So why was I getting emails from people with older iPads describing an interaction that wasn’t working? A JavaScript error was being thrown somewhere and—because of JavaScript’s brittle error-handling—that was causing all the subsequent JavaScript to fail.

I tracked the problem down to a function that was using some DOM methods—matches and closest—as well as the relatively recent JavaScript forEach method. But I had polyfills in place for all of those. Here’s the polyfill I’m using for matches and closest. And here’s the polyfill I’m using for forEach.

Then I spotted the problem. I was using forEach to loop through the results of querySelectorAll. But the polyfill works on arrays. Technically, the output of querySelectorAll isn’t an array. It looks like an array, it quacks like an array, but it’s actually a node list.

So I added this polyfill from Chris Ferdinandi.

That did the trick. I checked with the people with those older iPads and everything is now working just fine.

For the record, here’s the small collection of polyfills I’m using. Polyfills are supposed to be temporary. At some stage, as everyone upgrades their browsers, I should be able to remove them. But as long as some people are stuck with using an older browser, I have to keep those polyfills around.

I wish that Apple would allow other rendering engines to be installed on iOS devices. But if that’s a hell-freezing-over prospect, I wish that Safari updates weren’t tied to operating system updates.

Apple may argue that their browser rendering engine and their operating system are deeply intertwingled. That line of defence worked out great for Microsoft in the ‘90s.

Friday, October 16th, 2020

How To Protect Your Privacy Online In 8 Tips : Life Kit : NPR

Take a look at your smartphone and delete all the apps you don’t really need. For many tasks, you can use a browser on your phone instead of an app.

Privacy-wise, browsers are preferable, because they can’t access as much of your information as an app can.

Thursday, October 15th, 2020

Progressier | Make your website a PWA in 42 seconds

This in an intriguing promise (there’s no code yet):

A PWA typically requires writing a service worker, an app manifest and a ton of custom code. Progressier flattens the learning curve. Just add it to your html template — you’re done.

I worry that this one line of code will pull in many, many, many, many lines of JavaScript.

Saturday, October 3rd, 2020

Tuesday, September 22nd, 2020

Web browsers on iOS

Safari is the only browser on iOS devices.

I don’t mean it’s the only browser that ships with iOS devices. I mean it’s the only browser that can be installed on iOS devices.

You can install something called Chrome. You can install something called Firefox. Those aren’t different web browsers. Under the hood they’re using Safari’s rendering engine. They have to. The app store doesn’t allow other browsers to be listed. The apps called Chrome and Firefox are little more than skinned versions of Safari.

If you’re a web developer, there are two possible reactions to hearing this. One is “Duh! Everyone knows that!”. The other is “What‽ I never knew that!”

If you fall into the first category, I’m guessing you’ve been a web developer for a while. The fact that Safari is the only browser on iOS devices is something you’ve known for years, and something you assume everyone else knows. It’s common knowledge, right?

But if you’re relatively new to web development—heck, if you’ve been doing web development for half a decade—you might fall into the second category. After all, why would anyone tell you that Safari is the only browser on iOS? It’s common knowledge, right?

So that’s the situation. Safari is the only browser that can run on iOS. The obvious follow-on question is: why?

Apple at this point will respond with something about safety and security, which are certainly important priorities. So let me rephrase the question: why on iOS?

Why can I install Chrome or Firefox or Edge on my Macbook running macOS? If there are safety or security reasons for preventing me from installing those browsers on my iOS device, why don’t those same concerns apply to my macOS device?

At one time, the mobile operating system—iOS—was quite different to the desktop operating system—OS X. Over time the gap has narrowed. At this point, the operating systems are converging. That makes sense. An iPhone, an iPad, and a Macbook aren’t all that different apart from the form factor. It makes sense that computing devices from the same company would share an underlying operating system.

As this convergence continues, the browser question is going to have to be decided in one direction or the other. As it is, Apple’s laptops and desktops strongly encourage you to install software from their app store, though it is still possible to install software by other means. Perhaps they’ll decide that their laptops and desktops should only be able to install software from their app store—a decision they could justify with safety and security concerns.

Imagine that situation. You buy a computer. It comes with one web browser pre-installed. You can’t install a different web browser on your computer.

You wouldn’t stand for it! I mean, Microsoft got fined for anti-competitive behaviour when they pre-bundled their web browser with Windows back in the 90s. You could still install other browsers, but just the act of pre-bundling was seen as an abuse of power. Imagine if Windows never allowed you to install Netscape Navigator?

And yet that’s exactly the situation in 2020.

You buy a computing device from Apple. It might be a Macbook. It might be an iPad. It might be an iPhone. But you can only install your choice of web browser on one of those devices. For now.

It is contradictory. It is hypocritical. It is indefensible.

Saturday, July 18th, 2020

Indexing your offline-capable pages with the Content Indexing API

A Chrome-only API for adding offline content to an index that can be exposed in Android’s “downloads” list. It just shipped in the lastest version of Chrome.

I’m not a fan of browser-specific non-standards but you can treat this as an enhancement—implementing it doesn’t harm non-supporting browsers and you can use feature detection to test for it.