iiinova — where your digital self keeps evolving

Danny Moerkerke @dannymoerkerke.bsky.social · 8h

A PWA can open links instead of the user's default browser when it's installed with Chrome on Android, or added to the Dock on macOS with Safari. This is similar to how links to Instagram postings open in the Instagram app instead of a browser for example. Demo link 👇

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Danny Moerkerke @dannymoerkerke.bsky.social · 01/10/2026

PWAs on desktop can place content in the title bar. I added a demo to What PWA Can Do Today that puts a search box in the title bar, so you can search for a demo and access it from any page. Supported in Chromium-based browsers on macOS and Windows. Demo link 👇

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Danny Moerkerke @dannymoerkerke.bsky.social · 30/09/2026

Just published Modern Web Weekly #80 🎉 In this edition: - the iOS27 status bar blur (and how to get rid of it) - adding content to the title bar with window-controls-overlay - how to open files with your PWA (and set it as the default) Subscribe here 👇

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Danny Moerkerke @dannymoerkerke.bsky.social · 26/09/2026

What will AI do for programming languages? Do we still need them in the form we currently have? After all, they were created for humans. Do new developers still need to learn them or should they just learn how a system works instead? Maybe it’s time for agent-optimized languages.

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Danny Moerkerke @dannymoerkerke.bsky.social · 25/09/2026

Offline support doesn’t mean your web app has to work completely offline. It means it has to handle situations where the network is (temporarily) gone or flaky like in a parking garage or rural area. Give users the best possible user experience in that situation.

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Danny Moerkerke @dannymoerkerke.bsky.social · 21/09/2026

Web apps don’t even use half of the features available and that’s sad. I use a lot of recipe websites and almost not a single one uses the Wake Lock API to keep the screen on, which is really what you need when cooking. This is why people think native apps are better 😞

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Danny Moerkerke @dannymoerkerke.bsky.social · 15/09/2026

The killer feature of PWAs is not that they update automatically or they’re cross-platform. The absolute killer feature of PWAs is that they can be freely distributed without any app store dependency No risk that one party can kill your distribution and end your business. That’s a killer feature.

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Danny Moerkerke @dannymoerkerke.bsky.social · 10/09/2026

If your web app sends push notifications that don't show up on Samsung phones, here's what you need to know x.com/dannymoerker...

x.com

Danny Moerkerke (@dannymoerkerke) on X

When Push Notifications Don’t Show Up On Your Samsung Phone

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Danny Moerkerke @dannymoerkerke.bsky.social · 08/09/2026

In an attempt to make the installation flow on iOS clearer, I added a wizard-like vertical progress stepper to the installation steps with screenshots. Hopefully, this will make it clear that there are more steps outside the viewport, and the user needs to scroll down:

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Danny Moerkerke @dannymoerkerke.bsky.social · 04/09/2026

I added the <geolocation> element to the Geolocation demo of What PWA Can Do Today. The benefit of this element is that you can simply click it again if permission was previously denied, so you don't have to dig through browser settings. 🧵1/2

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Danny Moerkerke @dannymoerkerke.bsky.social · 04/09/2026

Chrome 153 now supports the <camera> and <microphone> elements. These elements do the same as getUserMedia(), but when access is denied, you can simply click it again to grant access, so users don't need to dig through browser settings to reset permissions. Demo link👇

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Danny Moerkerke @dannymoerkerke.bsky.social · 03/09/2026

iOS27 beta 6 adds a weird blur to the top of the screen, but only when the PWA is added to the Home Screen 🤷‍♂️ Oh, and the Share option to add it to the Home Screen is in a different place, again...

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Danny Moerkerke @dannymoerkerke.bsky.social · 02/09/2026

By popular demand, I added a capabilities page to What PWA Can Do Today, which lists all capabilities on one page and indicates for each one if it's supported on your device. You can filter by support and search for capabilities. whatpwacando.today/capabilities/

whatpwacando.today

What PWA Can Do Today

A showcase of what is possible with Progressive Web Apps today.

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Danny Moerkerke @dannymoerkerke.bsky.social · 29/08/2026

I added 3 new tools to the PWA Today MCP server 🚀 - list_pwa_audits - compare_pwa_audits - get_pwa_audit_entitlement Let your agent get a list of your audits and compare audits. The PWA Today Audit tests your PWA under real-world conditions and finds issues before your users do 🧵1/2 pwa.today

pwa.today

Ship a PWA users can trust.

Run a free PWA audit, then uncover install, offline, update, and lifecycle failures under real-world conditions.

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Danny Moerkerke @dannymoerkerke.bsky.social · 27/08/2026

I launched the PWA Today MCP server 🚀 Your AI agent can now run and analyse full, browser-based PWA audits directly from your workflow, map the results to your codebase, and fix issues right away. github.com/pwa-today/mc...

github.com

GitHub - pwa-today/mcp-server: PWA Today MCP server to let your agent run and analyse browser-based PWA runtime audits. Requires a paid plan.

PWA Today MCP server to let your agent run and analyse browser-based PWA runtime audits. Requires a paid plan. - pwa-today/mcp-server

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Danny Moerkerke @dannymoerkerke.bsky.social · 27/08/2026

Most PWA issues only appear at runtime: - Does it still work without network? - Does a new version activate cleanly? - Are users getting fresh files or old cached ones? - Can people actually install it? pwa.today tests that runtime behavior. Run a quick free check or add CI/CD audits. pwa.today

pwa.today

Ship a PWA users can trust.

Run a free PWA audit, then uncover install, offline, update, and lifecycle failures under real-world conditions.

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Danny Moerkerke @dannymoerkerke.bsky.social · 25/08/2026

pwa-check 0.1.6 now supports auditing authenticated PWAs 🎉 You can provide a bearer token, cookie, or sessionStorage JSON. pwa-check is an automated PWA health check tool to make sure your PWA looks, feels, and behaves like a real app. github.com/pwa-today/pw...

github.com

GitHub - pwa-today/pwa-check: Automated PWA health check tool to make sure your PWA looks, feels, and behaves like a real app.

Automated PWA health check tool to make sure your PWA looks, feels, and behaves like a real app. - pwa-today/pwa-check

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Danny Moerkerke @dannymoerkerke.bsky.social · 24/08/2026

Whatsapp Web is now a PWA... but not on mobile 😞 It could be, but Whatsapp chose not to make it available on mobile, only on desktop. This reinforces the idea that PWAs are inferior to native apps. If Whatsapp doesn't do it, it's probably not possible, right? 🧵1/3

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Danny Moerkerke @dannymoerkerke.bsky.social · 20/08/2026

The PWA Runtime Audit now tests if your PWA: - works offline after an update - works after a cold start while offline - serves the correct cached content while offline - retries requests made offline when back online Find runtime issues under real-world conditions, before your users do pwa.today

pwa.today

Ship a PWA users can trust.

Run a free PWA audit, then uncover install, offline, update, and lifecycle failures under real-world conditions.

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Danny Moerkerke @dannymoerkerke.bsky.social · 20/08/2026

I just published Modern Web Weekly #78 In this edition: - how to fix push notifications not displaying on the lock screen of your Samsung phone - how the PWA Today Runtime Audit helps you ship a PWA users can trust - how to make sure your PWA serves content from the right cache Subscribe link 👇

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Danny Moerkerke @dannymoerkerke.bsky.social · 20/08/2026

On iOS 26.5, you no longer need to add the meta tag <meta name="apple-mobile-web-app-capable" content="yes"> to show splash screens on iOS. This tag is deprecated since iOS 11.3, but it was still needed to show splash screens on iOS. Since iOS 26.5, this is no longer the case 🧵1/2

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Danny Moerkerke @dannymoerkerke.bsky.social · 13/08/2026

I launched pwa.today 🚀 The PWA Runtime Audit checks your PWA and finds runtime failures under real-world conditions. It checks installability, offline support, service worker lifecycle and makes sure you ship a PWA your users can trust. Check it out and let me know what you think! pwa.today

pwa.today

Ship a PWA users can trust.

Run a free PWA audit, then uncover install, offline, update, and lifecycle failures under real-world conditions.

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Danny Moerkerke @dannymoerkerke.bsky.social · 03/08/2026

v0.0.10 of pwa-check is out with: - better detection of dynamically added service workers - the --issues-only flag pwa-check helps you make sure your web app looks, feels, and behaves like a real PWA by analysing its installability, offline behavior, and app-like capabilities. Download 👇

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Danny Moerkerke @dannymoerkerke.bsky.social · 27/07/2026

pwa-check 0.0.9 now displays the impact, priority, and possible fix for each detected warning and failure. pwa-check helps you make sure your web app looks, feels, and behaves like a real PWA by running a deep analysis on its installability, offline behavior, and app-like capabilities. Download 👇

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Danny Moerkerke @dannymoerkerke.bsky.social · 20/07/2026

pwa-check helps you make sure your PWA looks, feels, and behaves like a real PWA. v0.0.7 now ships improved detection of dynamically added service workers with Workbox, so if your PWA uses Workbox but pwa-check doesn't detect it, let me know. github.com/pwa-today/pw...

github.com

GitHub - pwa-today/pwa-check: An automated PWA health check tool

An automated PWA health check tool. Contribute to pwa-today/pwa-check development by creating an account on GitHub.

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Danny Moerkerke @dannymoerkerke.bsky.social · 10/07/2026

I published v0.0.6 of pwa-check. This version: - fixes the installabilty check - adds flags to exclude warnings from failures - checks service worker event handlers for skipWaiting , clients.claim, and event.waitUntil - enables checking localhost Github link 👇

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Danny Moerkerke @dannymoerkerke.bsky.social · 09/07/2026

I just published Modern Web Weekly #76 🎉 In this edition: - pwa-check: an automated PWA health check tool - Safari MCP server - new installation dialog in Chrome 152 - Chrome 152 now correctly attributes push notifications to your PWA GitHub link to pwa-check and subscribe link 👇 🧵1/3

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Danny Moerkerke @dannymoerkerke.bsky.social · 08/07/2026

Is your web app actually ready to be installed, work offline, and behave like a real PWA? Let pwa-check answer that for you. I created pwa-check to help you make sure your PWA looks, feels, and behaves like a real app. github.com/pwa-today/pw... Give it a try, I'm curious to hear your feedback!

github.com

GitHub - pwa-today/pwa-check: An automated PWA health check tool

An automated PWA health check tool. Contribute to pwa-today/pwa-check development by creating an account on GitHub.

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Danny Moerkerke @dannymoerkerke.bsky.social · 05/06/2026

Out-of-order streaming HTML is coming to a browser near you! This means you can stream HTML to the browser in any order, which enables web apps to send the most important HTML first, regardless of where it is in the document. This is huuuuuge! 🧵1/3

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Danny Moerkerke @dannymoerkerke.bsky.social · 03/06/2026

I don’t think HTML-in-canvas is the biggest revolution in HTML right now. I think another feature is. One that will be truly revolutionary and that will have cross-browser support very soon. Details in tomorrow’s edition of Modern Web Weekly. Subscribe link 👇

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Danny Moerkerke @dannymoerkerke.bsky.social · 28/05/2026

Your web app can read and write files on the user’s device and request persistent storage so it’ll never lose data again, even if it’s not used for a while. Check the details in Modernn Web Weekly 73 Subscribe link 👇

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Danny Moerkerke @dannymoerkerke.bsky.social · 26/05/2026

Don't wait for iOS support to make your PWA installable. If we can teach users 4 clicks to add a web app to their favorites, we can teach them how to install a web app. Users are not unfamiliar with PWAs because of the lack of iOS support. It's because we don't build enough of them. 🧵 1/2

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Danny Moerkerke @dannymoerkerke.bsky.social · 20/05/2026

Firefox 151 now support the Document Picture-in-Picture API that enables web apps to open an always on top window that can be populated with arbitrary HTML content. Details in the upcoming edition of Modern Web Weekly. Demo and subscribe link 👇 🧵1/3

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Danny Moerkerke @dannymoerkerke.bsky.social · 19/05/2026

Firefox 151 ships with support for the Document Picture-in-Picture API which shows an always on top PiP window. Check the demo 👇

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Danny Moerkerke @dannymoerkerke.bsky.social · 19/05/2026

I created the macOS Dock with HTML, CSS, and JavaScript and I believe it's the smoothest version I have seen sofar 💪 Demo link 👇

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Danny Moerkerke @dannymoerkerke.bsky.social · 07/05/2026

I just published Modern Web Weekly #71 🎉 This edition is all about the WebAuthn PRF extension which enables web apps to derive encryption keys using the user's passkey. This means your web app no longer needs to store a private key in localStorage or IndexedDB. Demo and subscribe link 🧵1/3

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Danny Moerkerke @dannymoerkerke.bsky.social · 05/05/2026

It sucks that it's so difficult to install a PWA on iOS. It sucks that support for PWAs on iOS is limited. But we can't wait for Apple to improve this before we start building great web apps. When users perceive web apps as not as good as native apps, it's not always about the... 1/4 🧵

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Danny Moerkerke @dannymoerkerke.bsky.social · 04/05/2026

If you have a web app that doesn’t even work offline, you have no business complaining about PWA limitations. Use what’s available.

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Danny Moerkerke @dannymoerkerke.bsky.social · 04/05/2026

Progressive web apps (PWA) are disruptive because they eliminate gatekeepers like Apple and Google that basically determine if your business becomes a success or not. If you're not in the app stores or they kick you out, tough luck. PWAs change that. That's my mission.

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Danny Moerkerke @dannymoerkerke.bsky.social · 30/04/2026

I just published Modern Web Weekly #70 🎉 In this edition: - Safari TP now supports the improved attr() function - light dismiss a dialog with closedby - the state of deep linking in PWAs Subscribe link 👇

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Danny Moerkerke @dannymoerkerke.bsky.social · 20/03/2026

I just published Modern Web Weekly #69 🚀 In this edition: - how to install a PWA with Samsung Internet Browser - styling an anchor-positioned element based on its fallback position - updates for basic-service-worker Subscribe link 👇

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Danny Moerkerke @dannymoerkerke.bsky.social · 11/03/2026

I updated basic-service-worker, a service worker to make your PWA work offline, and updates ASAP when there are changes. It now updates to the new version when navigating in a SPA without page reload. github.com/DannyMoerker... Details in the upcoming edition of Modern Web Weekly. Subscribe 👇

github.com

GitHub - DannyMoerkerke/basic-service-worker: A basic Service Worker to make your web app work offline

A basic Service Worker to make your web app work offline - DannyMoerkerke/basic-service-worker

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Danny Moerkerke @dannymoerkerke.bsky.social · 07/03/2026

I noticed that, accidentally, an old version of the demo was deployed. This is now fixed: whatpwacando.today/focusgroup

whatpwacando.today

What PWA Can Do Today

A showcase of what is possible with Progressive Web Apps today.

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Danny Moerkerke @dannymoerkerke.bsky.social · 06/03/2026

I just published Modern Web Weekly #68 🎉 In this edition: - customizable <select> (now also in Safari Tech Preview!) - accessible arrow navigation with focusgroup - Interest Invokers Subscribe link 👇

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Danny Moerkerke @dannymoerkerke.bsky.social · 02/03/2026

Customisable <select> now works in Safari Tech Preview 238 🎉 Currently, I'm not able to open the Codepen site in Safari TP for some reason. Details in the upcoming edition of Modern Web Weekly. Demo of animated version and subscribe link 👇 🧵1/3

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Danny Moerkerke @dannymoerkerke.bsky.social · 19/02/2026

I just published Modern Web Weekly #67 🎉 In this edition: - the declarative <install> element - how to make sure push notifications open your PWA on Android - the importance of keeping your service worker alive with waitUntil() Subscribe link 👇

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