Always test your website in Safari and Firefox as well! Otherwise you may be forcing browsers to special-case your site (if it’s popular).

most of these github actions driven breaches are because of pull_request_target. here's some tips of what to look for when reviewing your own workflows. worth noting - it is safe, and necessary, when used correctly 🧵

wow, the icon size switcher is really smooth, with an animation. But it's actually just a link to a different page, with a view transition. MPAs ftw!

I'm sympathetic to this vision of a simpler web: dillo-browser.org/lab/web-fork/ Just like PDF/A is a subset of the PDF format for archiving of documents, HTML/A would be a subset of HTML without JavaScript etc. readable by simple browsers. @vale.rocks could even design a "HTML/A valid" badge!

One line of CSS. Perfectly responsive typography on every screen. font-size: clamp(1rem, 1vw, 1.75rem); 🪄 1rem minimum keeps text readable on phones 🪄 1vw makes it scale fluidly with the viewport 🪄 1.75rem caps it elegantly on large displays No media queries or breakpoints. Try it!

Uh, Cloudflare laying off 1100 emplyees (out of ~5000!) This sucks. Truly hope not too many of the great Astro folks are affected! Highlights the importance of lean open source frameworks like Mastro, that have little or no dependencies, and can be maintained by a tiny team!

Chrome dropping first-class support for ad blockers, AMP, and now this. We need browser engine competition!

We all hate img’s `sizes` attribute. It’s a workaround for: “A browser can’t know about the space an image will occupy in a layout because it makes decisions about image requests long before it has the information it needs to render that layout” But now there is <img loading=lazy sizes=auto 🥳

Repost if you agree, comment if you have a better name!

Good intro to compression dictionaries (ignore the throwaway sentences about agents). I’m looking forward to Phase 2 where Cloudflare handles most of the complexity for you.

If you’ve been looking for an iOS browser with a No-JavaScript button, look no further! daringfireball.net/linked/2026/...

text-indent: hanging; is in all browsers now! developer.mozilla.org/en-US/docs/W...

Think about it: React is the worst modern framework in terms of performance. Its only benefit was the ecosystem size; it's the default choice. You can always find what you need, and you can always hire for it. But if AI is writing the code anyway, those benefits fly out the window.

im an ai influencer btw: htmx.org/essays/yes-a...

No bundler! 💪🏻 developer.mozilla.org/en-US/blog/m...

Browser’s bfcache is criminally underused!

this is a great CSS read. blog.gitbutler.com/the-great-cs... not to mention syntax improvements; nested CSS, CSS vars and mixing colors, et al.

SPAs are actually good (for a very very limited number of use-cases)

Experienced teams are good at estimating the median of how long tasks will take, but it's a log-normal probability distribution. What you want to use for sprint planning (for tickets to average out) is probably the mean, which is 1.6x the median (i.e. 1.6x the estimate) in this distribution. (1/2)

honestly astonished that anyone still uses axios in 2026. fetch made it into all major browsers *nine years ago*. eleven if you don't count safari!

CSS nesting is now Baseline 🎉 Write nested selectors directly in CSS — just like Sass, but natively. .card { color: black; &:hover { color: blue; } .title { font-weight: bold; } } No preprocessor needed. Learn more 👇 developer.mozilla.org/en-US/docs/...

Ariel's post pushed me to finally finish "Why Mastro?" Does the more personal tone work? "Over the last decade, the JavaScript ecosystem has been moving to ever more complex frameworks and build systems. What prompted me to create Mastro is that a lot of that isn’t necessary anymore."

♛ Brilliant. Kyle Van Deusen’s two-layer approach to managing color on your project solves problems you might not even know you have yet. theadminbar.com/semantics-an...  #ProductDesign #ProductDevelopment #webdevelopment #designsystems #color #palettes #primitives

I disagree with blaming full-stack eng. But this definitely resonated: "It isn’t about awareness. It’s about who’s writing the front-end code, and whether they’re qualified to write it. [frontend skills] require years of focused attention. They require someone whose job it is to care about them"

Those bang queries are great, but even faster is adding npmx search to the address bar in Firefox (via right click once) with a keyword (e.g. "@n"). Firefox also supports type ahead and search suggestions from npmx.dev this way. Other browsers will likely offer similar mechanisms (not tested).

Revolution or evolution? Switch ecosystem or incrementally evolve an existing one? The former needs to be 10x as good to justify switching. The latter always needs to go through adjacent possibles: newsletter.squishy.computer/p/evolution-...

Deno was always a tough business case. It's a pity, as Deno Deploy seemed quite nice to use last time I tried it. I still use the deno runtime because with Node/Bun: - I always forget to run `pnpm/bun install` - I hate upgrading packages likes TypeScript and linters

🤗 developer.mozilla.org/en-US/docs/W...

This prompted me to change the first sentence to "Mastro is a minimal tool for people that care." Does that resonate with you? Or should we be more explicit, like "for people that care about their users and the web"? 🤔

You might not need WebSockets! Server-sent events (SSE) is a simple and decades-old format to stream JSON over HTTP. And since today, Mastro has not only a `htmlResponse` and `jsonResponse` helper, but also `sseResponse`. These are all tiny wrappers around the web standard Response object btw.

Using CSS variables for z-index values! 🤯

Node.js is moving to one major release per year starting with Node 27! 🚀 ✅ Simpler: Every release becomes LTS. ✅ Predictable: Version numbers now align with the year. ✅ New: A 6-month Alpha channel for early testing. https://bit.ly/4rnosLg

Remember Service Workers? What's the right way to think about them in 2026? Are they HTTP proxies, offline-capable web apps, or free frontend servers? New post: mastrojs.github.io/blog/2026-03...

Whilst watching @kevinpowell.co's 1M sub stream today, and he made this statement that caught my attention: 📌 Javascript's possible reduced role in 1-2 yrs, thanks to CSS's attr() function. developer.mozilla.org/en-US/docs/W... Thoughts? You can watch the stream here: www.youtube.com/live/e5JY5Kz...

First Astro, then 11ty… congrats to Zach for finding a (hopefully) sustainable home! The idea with Mastro though is to keep the core so simple and minimal that it doesn’t require a lot of maintenance.

@jasnell.me's blog post on streams made me finally add a buffer in Mastro's HTML streaming implementation. This greatly reduces the number of chunks in the async iterable. Because there is a lot of per-chunk overhead, this brings our benchmark down from 25µs to 10µs 🚀 github.com/mastrojs/mas...

Oh, cool! The Docs tab in @jsr.io now defaults to the default export (previously it was "all symbols", which got sometimes cluttered). jsr.io/@mastrojs/ma...

software is ultimately a sociocultural object, not a pile of code, not a tool like a hammer

Unfortunately, JavaScript/TypeScript has no built in type Result<T> = T | Err. There seems to be no widely used library (like Bluebird was for Promises before standardization)? What are you people using? Perhaps `type Result` in standardschema.dev might be our best chance to get there?

"there’s always some layer of abstraction. [...] But when it comes to front-end development, that line is for me to stay as close as I can to raw HTML, CSS, and JavaScript. After all, that’s what users are going to get in their browsers."

📕 Stop Using and Recommending React 👉🏻 The author used React for a long time and explains that there is no reason to use it and a lot of reasons against it. 👉🏻 He mentions Vue, Svelte or Lit as alternatives. https://blog.lusito.info/stop-using-and-recommending-react.html

If you’re giving Mastro a spin, please let us know if you run into anything that’s not immediately obvious. We always aim to improve our docs, error messages and general onboarding flow. Thanks!

Oh cool, the Safari async module loading bug I reported for a while back was selected for Interop 2026! And the WebKit team is already in the process of rewriting their module loader from scratch 🥳 Thanks @jakearchibald.com, @rich-harris.dev and everyone else who was involved in pushing this!

A terminal GUI library (like Phlex or OpenTUI) where you write HTML tables 🫣

Today on the pod, Mauro Bieg talks Mastro.js - a minimal web framework that's like 11ty + Astro's baby! Learn about routing, HTML templating, streaming & reactive UI. share.transistor.fm/s/387c5e24 #typescript

What's your favourite headless CMS to back a static site? After creating a Mastro template for Sveltia (a git-based CMS), I want to create one for an open source database-backed CMS that's easy to get started with.

Had a blast on @typescript.fm We talked about why I started Mastro, the design decisions behind it, and why modern #webdev feels harder than it should. Thanks a lot for having me, Kamran and Erik!

Finally added a README to our example of an interactive to-do list with SSR and REST API. It even avoids the "double data problem" (Or what do people outside the #solidjs community call sending the same data once as HTML and once as JSON?)

Been saying this for a while but the really exciting stuff on the web right now is all about how things we used to need JS for can now be done with pure CSS. There are a lot of opportunities to cut out client side bloat.

How can a complete web framework be ~700 lines of TypeScript? For one, everything is a route in Mastro.