There’s no browser support yet but that doesn’t mean we can’t start adding
prefers-reduced-data to our media queries today. I like the idea of switching between web fonts and system fonts.
There’s a new image format on the browser block and it’s very performant indeed. Jake has all the details you didn’t ask for.
How and when did I get to the point where I would consider a page weight of 4 MB on a large page and 500 KB on a small page normal?
This isn’t just a well-earned rant from Manuel. I mean, it *is that, but it’s also packed with practical performance advice.
When it comes to frameworks and UI libraries, there are some interesting numbers. Given the volume of chatter in the dev world, you’d be forgiven for thinking that React is used on the majority of websites today. The real number? 4.6% of websites. That’s less than the number of websites using CSS custom properties.
This is reminding me of what I wrote about dev perception.
Worlds of scarcity are made out of things. Worlds of abundance are made out of dependencies. That’s the software playbook: find a system made of costly, redundant objects; and rearrange it into a fast, frictionless system made of logical dependencies. The delta in performance is irresistible, and dependencies are a compelling building block: they seem like just a piece of logic, with no cost and no friction. But they absolutely have a cost: the cost is complexity, outsourced agency, and brittleness. The cost of ownership is up front and visible; the cost of access is back-dated and hidden.
This looks like a nice way to get a blog up and running:
Blot turns a folder into a blog. Drag-and-drop ﬁles inside to publish. Images, text ﬁles, Word Documents, Markdown and more become blog posts automatically.
Jason describes the next big thing in web typography: streaming fonts!
…to enable the ability for only the required part of the font be downloaded on any given page, and for subsequent requests for that font to dynamically ‘patch’ the original download with additional sets of glyphs as required on successive page views—even if they occur on separate sites.
This is my kind of URL nerdery. Remy ponders all the permutations of URLs ending with slashes, ending without slashes, ending with with a file extension…
This’ll be handy the next time I want to send someone a file: drop it in here, and then paste the link into a DM/chat.
Following on from that proposal for a browser feature that I linked to yesterday, Tim thinks through all the permutations and possibilities of user agents allowing users to throttle resources:
If a limit does get enforced (it’s important to remember this is still a big if right now), as long as it’s handled with care I can see it being an excellent thing for the web that prioritizes users, while still giving developers the ability to take control of the situation themselves.
A handy in-browser image compression tool. Drag, drop, tweak, and export.
I remember Jason telling me about this weird service worker caching behaviour a little while back. This piece is a great bit of sleuthing in tracking down the root causes of this strange issue, followed up with a sensible solution.
A step-by-step guide to implementing drag’n’drop, and image previews with the Filereader API. No libraries or frameworks were harmed in the making of this article.
This blog post saved my ass—the Huffduffer server was b0rked and after much Duck-Duck-Going I found the answer here.
I’m filing this away for my future self because, as per Murphy’s Law, I’m pretty sure I’ll be needing this again at some point
This is an interesting use of voodoo magic (or “machine learning” as we call it now) by Google to interpolate data in a small image to create a larger version. A win for performance.
The street finds its own uses for colonial internet practices:
Because the data is completely free, Angolans are hiding large files in Wikipedia articles on the Portuguese Wikipedia site (Angola is a former Portuguese colony)—sometimes concealing movies in JPEG or PDF files. They’re then using a Facebook group to direct people to those files, creating a robust, completely free file sharing network.
Ignore the silly name: this looks a supremely useful service—convert just about any file format into just about any other file format.