Tags: screen

177

Codestin Search App

Thursday, August 7th, 2025

Progressive web apps

There was a time when you needed to make a native app in order to take advantage of specific technologies. That time has passed.

Now you can do all of these things on the web:

  • push notifications,
  • offline storage,
  • camera access,
  • and more.

Take a look at the home screen on your phone. Looking at the apps you’ve downloaded from an app store, ask yourself how many of them could’ve been web apps.

Social media apps, airline apps, shopping apps …none of them are using technologies that aren’t widely available on the web.

“But”, you might be thinking, “it feels different having a nice icon on my homescreen that launches a standalone app compared to navigating to a bookmark in my web browser.”

I agree! And you can do that with a web app. All it takes the addition of one manifest file that lists which icons and colours to use.

If that file exists for a website, then once the user adds the website to their homescreen it will behave just like native app.

Try it for yourself. Go to instagram.com in your mobile browser and it to your homescreen (on the iPhone, you get to the “add to home screen” option from the sharing icon—scroll down the list of options to find it).

See how it’s now an icon on your home screen just like all your other apps? Tap that icon to see how it launches just like a native app with no browser chrome around it.

This doesn’t just work on mobile. Desktop browsers like Chrome, Edge, and Safari also allow you to install web apps straight from the browser and into your dock.

About half of the icons in my dock are actually web apps and I honestly can’t tell which is which. Mastodon, Instagram, Google Calendar, Google Docs …I’m sure most of those services are available as downloadable desktop apps, but why would I bother doing that when I get exactly the same experience by adding the sites to my dock?

From a business perspective, it makes so much sense to build a web app (or simply turn your existing website into a web app with the addition of a manifest file). No need for separate iOS or Android developer teams. No need to play the waiting game with updates to your app in the app store—on the web, updates are instant.

You can even use an impressive-sounding marketing term for this approach: progressive web apps:

A Progressive Web App (PWA) is a web app that uses progressive enhancement to provide users with a more reliable experience, uses new capabilities to provide a more integrated experience, and can be installed. And, because it’s a web app, it can reach anyone, anywhere, on any device, all with a single codebase. Once installed, a PWA looks like any other app, specifically:

  • It has an icon on the home screen, app launcher, launchpad, or start menu.
  • It appears when you search for apps on the device.
  • It opens in a standalone window, wholly separated from a browser’s user interface.
  • It has access to higher levels of integration with the OS, for example, URL handling or title bar customization.
  • It works offline.

But there’s still one thing that native apps do better than the web. If you want to be able to monitor and track users to an invasive degree, the web can’t compete with the capabilities of native apps. That’s why you’ll see so many websites on your mobile device that implore to install their app from the app store.

If that’s not a priority for you, then you can differentiate yourself from your competitors by offering your users a progressive web app. Instead of having links to Apple and Google’s app stores, you can link to a page on your own site with installation instructions.

I can guarantee you that users won’t be able to tell the difference between a native app they installed from an app store and a web app they’ve added to their home screen.

Thursday, May 15th, 2025

Awareness

Today is Global Accessibility Awareness Day:

The purpose of GAAD is to get everyone talking, thinking and learning about digital access and inclusion, and the more than One Billion people with disabilities/impairments.

Awareness is good. It’s necessary. But it’s not sufficient.

Accessibility, like sustainability and equality, is the kind of thing that most businesses will put at the end of sentences that begin “We are committed to…”

It’s what happens next that matters. How does that declared commitment—that awareness—turn into action?

In the worst-case scenario, an organisation might reach for an accessibility overlay. Who can blame them? They care about accessibility. They want to do something. This is something.

Good intentions alone can result in an inaccessible website. That’s why I think there’s another level of awareness that’s equally important. Designers and developers need to be aware of what they can actually do in service of accessibility.

Fortunately that’s not an onerous expectation. It doesn’t take long to grasp the importance of having good colour contrast or using the right HTML elements.

An awareness of HTML is like a superpower when it comes to accessibility. Like I wrote in the foreword to the Web Accessibility Cookbook by O’Reilly:

It’s supposed to be an accessibility cookbook but it’s also one of the best HTML tutorials you’ll ever find. Come for the accessibility recipe; stay for the deep understanding of markup.

The challenge is that HTML is hidden. Like Cassie said in the accessibility episode of The Clearleft Podcast:

You get JavaScript errors if you do that wrong and you can see if your CSS is broken, but you don’t really have that with accessibility. It’s not as obvious when you’ve got something wrong.

We are biased towards what we can see—hierarchy, layout, imagery, widgets. Those are the outputs. When it comes to accessibility, what matters is how those outputs are generated. Is that button actually a button element or is it a div? Is that heading actually an h1 or is it another div?

This isn’t about the semantics of HTML. This is about the UX of HTML:

Instead of explaining the meaning of a certain element, I show them what it does.

That’s the kind of awareness I’m talking about.

One way of gaining this awareness is to get a feel for using a screen reader.

The name is a bit of a misnomer. Reading the text on screen is the least important thing that the software does. The really important thing that a screen reader does is convey the structure of what’s on screen.

Friend of Clearleft, Jamie Knight very generously spent an hour of his time this week showing everyone the basics of using VoiceOver on a Mac (there’s a great short video by Ethan that also covers this).

Using the rotor, everyone was able to explore what’s under the hood of a web page; all the headings, the text of all the links, the different regions of the page.

That’s not going to turn anyone into an accessibility expert overnight, but it gave everyone an awareness of how much the HTML matters.

Mind you, accessibility is a much bigger field than just screen readers.

Fred recently hosted a terrific panel called Is neurodiversity the next frontier of accessibility in UX design?—well worth a watch!

One of those panelists—Craig Abbott—is speaking on day two of UX London next month. His talk has the magnificent title, Accessibility is a design problem:

I spend a bit of time covering some misconceptions about accessibility, who is responsible for it, and why it’s important that we design for it up front. It also includes real-world examples where design has impacted accessibility, before moving onto lots of practical guidance on what to be aware of and how to design for many different accessibility issues.

Get yourself a ticket and get ready for some practical accessibility awareness.

Tuesday, February 25th, 2025

The web on mobile (a response) | Clagnut by Richard Rutter

Rich suggests another reason why the UX of websites on mobile is so shit these days:

The path to installing a native app is well trodden. We search the App Store (or ironically follow a link from a website), hit ‘Get’ and the app is downloaded to our phone’s home screen, ready to use any time with a simple tap.

A PWA can also live on your home screen, nicely indistinguishable from a native app. But the journey to getting a PWA – or indeed any web app – onto your home screen remains convoluted to say the least. This is the lack of equivalence I’m driving at. I wonder if the mobile web experience would suck as badly if web apps could be installed just as easily as native apps?

Wednesday, October 16th, 2024

Docks and home screens

Back in June I documented a bug on macOS in how Spaces (or whatever they call they’re desktop management thingy now) works with websites added to the dock.

I’m happy to report that after upgrading to Sequoia, the latest version of macOS, the bug has been fixed! Excellent!

Not only that, but there’s another really great little improvement…

Let’s say you’ve installed a website like The Session by adding it to the dock. Now let’s say you get an email in Apple Mail that includes a link to something on The Session. It used to be that clicking on that link would open it in your default web browser. But now clicking on that link opens it in the installed web app!

It’s a lovely little enhancement that makes the installed website truly feel like a native app.

Websites in the dock also support the badging API, which is really nice!

Like I said at the time:

I wonder if there’s much point using wrappers like Electron any more? I feel like they were mostly aiming to get that parity with native apps in having a standalone application launched from the dock.

Now all you need is a website.

The biggest issue remains discovery. Unless you already know that it’s possible to add a website to the dock, you’re unlikely to find out about it. That’s why I’ve got a page with installation instructions on The Session.

Still, the discovery possibilities on Apples’s desktop devices are waaaaay better than on Apple’s mobile devices.

Apple are doing such great work on their desktop operating system to make websites first-class citizens. Meanwhile, they’re doing less than nothing on their mobile operating system. For a while there, they literally planned to break all websites added to the homescreen. Fortunately they were forced to back down.

But it’s still so sad to see how Apple are doing everything in their power to prevent people from finding out that you can add websites to your homescreen—despite (or perhaps because of) the fact that push notifications on iOS only work if the website has been added to the home screen!

So while I’m really happy to see the great work being done on installing websites for desktop computers, I’m remain disgusted by what’s happening on mobile:

At this point I’ve pretty much given up on Apple ever doing anything about this pathetic situation.

Saturday, June 15th, 2024

Wednesday, June 12th, 2024

Web App install API

My bug report on Apple’s websites-in-the-dock feature on desktop has me thinking about how starkly different it is on mobile.

On iOS if you want to add a website to your home screen, good luck. The option is buried within the “share” menu.

First off, it makes no sense that adding something to your homescreen counts as sharing. Secondly, how is anybody supposed to know that unless they’re explicitly told.

It’s a similar situation on Android. In theory you can prompt the user to install a progressive web app using the botched BeforeInstallPromptEvent. In practice it’s a mess. What it actually does is defer the installation prompt so you can offer it a more suitable time. But it only works if the browser was going to offer an installation prompt anyway.

When does Chrome on Android decide to offer the installation prompt? It’s a mix of required criteria—a web app manifest, some icons—and an algorithmic spell determined by the user’s engagement.

Other browser makers don’t agree with this arbitrary set of criteria. They quite rightly say that a user should be able to add any website to their home screen if they want to.

What we really need is an installation API: a way to programmatically invoke the add-to-homescreen flow.

Now, I know what you’re going to say. The security and UX implications would be dire. But this should obviously be like geolocation or notifications, only available in secure contexts and gated by user interaction.

Think of it like adding something to the clipboard: it’s something the user can do manually, but the API offers a way to do it programmatically without opening it up to abuse.

(I’d really love it if this API also had a declarative equivalent, much like I want button type="share" for the Web Share API. How about button type="install"?)

People expect this to already exist.

The beforeinstallprompt flow is an absolute mess. Users deserve better.

Sunday, March 3rd, 2024

Apple backs off killing web apps, but the fight continues - Open Web Advocacy

Hallelujah! Apple have backed down on their petulant plan to sabatoge homescreen apps.

I’m very grateful to the Open Web Advocacy group for standing up to this bullying.

Tuesday, February 27th, 2024

Home Screen Advantage - Infrequently Noted

This is exactly what it looks like: a single-fingered salute to the web and web developers.

Read Alex’s thorough explanation of the current situation and then sign this open letter.

Cupertino’s not just trying to vandalise PWAs and critical re-engagement features for Safari; it’s working to prevent any browser from ever offering them on iOS. If Apple succeeds in the next two weeks, it will cement a future in which the mobile web will never be permitted to grow beyond marketing pages for native apps.

Also, remember this and don’t fall for it:

Apple apparently hopes it can convince users to blame regulators for its own choices.

Wednesday, February 21st, 2024

The Folly of Chasing Demographics - YouTube

I just attended this talk from Heydon at axe-con and it was great! Of course it was highly amusing, but he also makes a profound and fundamental point about how we should be going about working on the web.

The Folly of Chasing Demographics

Saturday, February 17th, 2024

Manton Reece - Apple is twisting the truth

When it benefits Apple, they take the DMA requirements much further than intended. When it doesn’t benefit them, they lean back on the “integrity” of iOS and barely comply at all.

Rotten Apple

The European Union’s Digital Markets Act is being enforced and Apple aren’t happy about it.

Most of the discussion around this topic has centred on the requirement for Apple to provision alternative app stores. I don’t really care about that because I don’t really care about native apps. With one exception: I care about web browsers.

That’s the other part of the DMA that’s being enforced: Apple finally have to allow alternative browsing engines. Hallelujah!

Instead of graciously acknowledging that this is what’s best for users, Apple are throwing a tantrum.

First of all, they’re going to ringfence any compliance to users in the European Union. Expect some very interesting edge cases to emerge in a world where people don’t spent their entire lives in one country.

Secondly, Apple keep insisting that this will be very, very bad for security. You can read Apple’s announcement on being forced to comply but as you do you so, I’d like you to remember one thing: every nightmare scenario they describe for the security of users in the EU is exactly what currently happens on Macs everywhere in the world.

This includes risks from installing software from unknown developers that are not subject to the Apple Developer Program requirements, installing software that compromises system integrity with malware or other malicious code, the distribution of pirated software, exposure to illicit, objectionable, and harmful content due to lower content and moderation standards, and increased risks of scams, fraud, and abuse.

Users of macOS everywhere are currently exposed to all the risks that will supposedly overwhelm iOS users in the European Union. Weirdly, the sky hasn’t fallen.

It’s the same with web browsers. I just got a new Mac. It came with one browser pre-installed: Safari. It’s a good browser. But I also have the option of installing another browser, like Firefox (which I’ve done). A lot of people just use Safari. That’s good. That’s choice. Everyone wins.

Now Apple need to provide parity on iOS, at least for users in the EU. Again, Apple are decribing this coming scenario as an absolute security nightmare. But again, the conditions they’re describing are what already exist on macOS.

All Apple is being asked to do is offer than the same level of choice on mobile that everyone already enjoys on their computers. Rather than comply reasonably, Apple have found a way to throw their toys out of the pram.

As of the next update to iOS, users in the EU will no longer have homescreen apps. Those web apps will now launch in a browser window. Presumably they’ll also lose the ability to send push notifications: being a homescreen app was a prerequisite for that functionality.

This is a huge regression that only serves to harm and confuse users.

I have a website about traditional Irish music. Guess where a significant amount of the audience is based? That’s right: Ireland. In the European Union.

There is no native app for The Session, but you can install it on your phone nonetheless. Lots of people have done that. After a while they forget that they didn’t install it from an app store: it behaves just like any other app on their homescreen.

That’s all about to change. I’m going to get a lot of emails from confused users wondering why their app is broken, now opening in a regular browser window. And I won’t be able to do anything about it, other than to tell them to take it up with Apple.

Presumably Apple is hoping that users will direct their anger at the EU commission instead. They’re doing their best to claim that they’re being forced to make this change. That’s completely untrue. A lie:

This is emphatically not required by the EU’s Digital Markets Act (DMA). It’s a circumvention of both the spirit and the letter of the Act, and if the EU allows it, then the DMA will have failed in its aim to allow fair and effective browser and web app competition.

Throughout all their communications on this topic, Apple are sticking to their abuser logic:

Look what you made me do!

This is going to hurt me more than it hurts you.

Apple’s petulant policy of malicious compliance is extremely maddening. What they’re about to do to users in the EU is just nasty.

This is a very dark time for the web.

I feel bad for the Safari team. They’ve been working really hard recently to make Safari a very competitive browser with great standards support with a quicker release cycle than we’ve seen before. Then it all gets completely torpedoed at the level of the operating system.

I really hope that Apple won’t get away with their plan to burn down web apps on iOS in the EU. But hope isn’t enough. We need to tell the EU commission how much damage this will do.

If you’ve ever built a web app, then your users will suffer. Remember, it’s a world wide web, including the European Union.

Create a PDF with the following information:

  • Your company’s name.
  • Your name.
  • That your company operates or services the EU.
  • How many users your service has in the EU (approximately).
  • The level of impact this will have on your business.
  • The problems this will cause your business.
  • Whether or not the submission is confidential.

The submission can be as short or long as you want. Send it to [email protected], ideally before Monday, February 19th.

I know that’s a lot to ask of you on your weekend, but this really matters for the future of the web.

At the very least, I encourage to get involved with the great work being done by the Open Web Advocacy group. They’re also on Discord.

Please don’t let Apple bully an entire continent of users.

Thursday, February 15th, 2024

Apple on course to break all Web Apps in EU within 20 days - Open Web Advocacy

I don’t like to assume the worst and assign vindictitive motives to people, but what Apple is doing here is hard to read as anything other than petulant and nasty …and really, really bad for users.

If you’ve ever made a progressive web app, please fill in this survey.

Tuesday, January 30th, 2024

Web Push on iOS - 1 year anniversary - Webventures

Web Push on iOS is nearing its one year anniversary. It’s still mostly useless.

Sad, but true. And here’s why:

On iOS, for a website to be able to ask the user to grant the push notification permission, it needs to be installed to the home screen.

No other browser on any of the other platforms requires you to install a website for it to be able to send push notifications.

Apple is within their rights to withhold Web Push to installed apps. One could argue it’s not even an unreasonable policy - if Apple made installing a web app at least moderately straightforward. As it is, they have buried it and hidden important functionality behind it.

I really, really hope that the Safari team are reading this.

Tuesday, December 12th, 2023

button invoketarget=”share”

I’ve written quite a bit about how I’d like to see a declarative version of the Web Share API. My current proposal involves extending the type attribute on the button element to support a value of “share”.

Well, maybe a different attribute will end up accomplishing what I want! Check out the explainer for the “invokers” proposal over on Open UI. The idea is to extend the button element with a few more attributes.

The initial work revolves around declaratively opening and closing a dialog, which is an excellent use case and definitely where the effort should be focused to begin with.

But there’s also investigation underway into how this could be away to provide a declarative way of invoking JavaScript APIs. The initial proposal is already discussing the fullscreen API, and how it might be invoked like this:

button invoketarget="toggleFullsceen"

They’re also looking into a copy-to-clipboard action. It’s not much of a stretch to go from that to:

button invoketarget="share"

Remember, these are APIs that require a user interaction anyway so extending the button element makes a lot of sense.

I’ll be watching this proposal keenly. I’d love to see some of these JavaScript cowpaths paved with a nice smooth coating of declarative goodness.

Tuesday, August 29th, 2023

The ideal viewport doesn’t exist

Some lovely scroll-driven animations illustrate this great little microsite.

There’s something very pleasy about the chunky design that harkens back to the Zeldmanesque early web.

Monday, June 19th, 2023

Button types

I’ve been banging the drum for a button type="share" for a while now.

I’ve also written about other potential button types. The pattern I noticed was that, if a JavaScript API first requires a user interaction—like the Web Share API—then that’s a good hint that a declarative option would be useful:

The Fullscreen API has the same restriction. You can’t make the browser go fullscreen unless you’re responding to user gesture, like a click. So why not have button type=”fullscreen” in HTML to encapsulate that? And again, the fallback in non-supporting browsers is predictable—it behaves like a regular button—so this is trivial to polyfill.

There’s another “smell” that points to some potential button types: what functionality do browsers provide in their interfaces?

Some browsers provide a print button. So how about button type="print"? The functionality is currently doable with button onclick="window.print()" so this would be a nicer, more declarative way of doing something that’s already possible.

It’s the same with back buttons, forward buttons, and refresh buttons. The functionality is available through a browser interface, and it’s also scriptable, so why not have a declarative equivalent?

How about bookmarking?

And remember, the browser interface isn’t always visible: progressive web apps that launch with minimal browser UI need to provide this functionality.

Šime Vidas was wondering about button type="copy” for copying to clipboard. Again, it’s something that’s currently scriptable and requires a user gesture. It’s a little more complex than the other actions because there needs to be some way of providing the text to be copied, but it’s definitely a valid use case.

  • button type="share"
  • button type="fullscreen"
  • button type="print"
  • button type="bookmark"
  • button type="back"
  • button type="forward"
  • button type="refresh"
  • button type="copy"

Any more?

Thursday, February 23rd, 2023

People do use Add to Home Screen – Firefox UX

Oh no! My claim has been refuted by a rigourous scientific study of …checks notes… ten people.

Be right back: just need to chat with eleven people.

Sunday, February 19th, 2023

A pretty sweet push notification solution for mobile Safari

An entire generation of apps-that-should-have-been web pages has sprung up, often shoehorned into supposedly cross-platform frameworks that create a subpar user experience sludge. Nowhere is this more true than for media — how many apps from newspapers or magazines have you installed, solely for a very specific purpose like receiving breaking news alerts? How many of those apps are just wrappers around web views? How many of those apps should have been web pages?

Web Push on iOS requires installing the web app - Webventures

Instead of doing what the competing browsers are doing (and learning from years of experience of handling Web Push), Apple decided to reinvent a wheel here. What they’ve turned up with looks a lot more like a square.

Friday, February 17th, 2023

Push

Push notifications are finally arriving on iOS—hallelujah! Like I said last year, this is my number one wish for the iPhone, though not because I personally ever plan to use the feature:

When I’m evangelising the benefits of building on the open web instead of making separate iOS and Android apps, I inevitably get asked about notifications. As long as mobile Safari doesn’t support them—even though desktop Safari does—I’m somewhat stumped. There’s no polyfill for this feature other than building an entire native app, which is a bit extreme as polyfills go.

With push notifications in mobile Safari, the arguments for making proprietary apps get weaker. That’s good.

The announcement post is a bit weird though. It never uses the phrase “progressive web apps”, even though clearly the entire article is all about progressive web apps. I don’t know if this down to Not-Invented-Here syndrome by the Apple/Webkit team, or because of genuine legal concerns around using the phrase.

Instead, there are repeated references to “Home Screen apps”. This distinction makes some sense though. In order to use web push on iOS, your website needs to be added to the home screen.

I think that would be fair enough, if it weren’t for the fact that adding a website to the home screen remains such a hidden feature that even power users would be forgiven for not knowing about it. I described the steps here:

  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

As long as this remains the case, we can expect usage of web push on iOS to be vanishingly low. Hardly anyone is going to add a website to their home screen when their web browser makes it so hard.

If you’d like to people to install your progressive web app, you’ll almost certainly need to prompt people to do so. Here’s the page I made on thesession.org with instructions on how to add to home screen. I link to it from the home page of the site.

I wish that pages like that weren’t necessary. It’s not the best user experience. But as long as mobile Safari continues to bury the home screen option, we don’t have much choice but to tackle this ourselves.