Firefox has a nifty extension—made by Mozilla—called Facebook Container. It does two things.
First of all, it sandboxes any of your activity while you’re on the facebook.com domain. The tab you’re in is isolated from all others.
Secondly, when you visit a site that loads a tracker from Facebook, the extension alerts you to its presence. For example, if a page has a share widget that would post to Facebook, a little fence icon appears over the widget warning you that Facebook will be able to track that activity.
It’s a nifty extension that I’ve been using for quite a while. Except now it’s gone completely haywire. That little fence icon is appearing all over the web wherever there’s a form with an email input. See, for example, the newsletter sign-up form in the footer of the Clearleft site. It’s happening on forms over on The Session too despite the rigourous-bordering-on-paranoid security restrictions in place there.
Hovering over the fence icon displays this text:
If you use your real email address here, Facebook may be able to track you.
That is, of course, false. It’s also really damaging. One of the worst things that you can do in the security space is to cry wolf. If a concerned user is told that they can ignore that warning, you’re lessening the impact of all warnings, even serious legitimate ones.
Sometimes false positives are an acceptable price to pay for overall increased security, but in this case, the rate of false positives can only decrease trust.
I tried to find out how to submit a bug report about this but I couldn’t work it out (and I certainly don’t want to file a bug report in a review) so I’m writing this in the hopes that somebody at Mozilla sees it.
What’s really worrying is that this might not be considered a bug. The release notes for the version of the extension that came out last week say:
Email fields will now show a prompt, alerting users about how Facebook can track users by their email address.
Like …all email fields? That’s ridiculous!
I thought the issue might’ve been fixed in the latest release that came out yesterday. The release notes say:
This release addresses fixes a issue from our last release – the email field prompt now only displays on sites where Facebook resources have been blocked.
But the behaviour is unfortunately still there, even on sites like The Session or Clearleft that wouldn’t touch Facebook resources with a barge pole. The fence icon continues to pop up all over the web.
I hope this gets sorted soon. I like the Facebook Container extension and I’d like to be able to recommend it to other people. Right now I’d recommed the opposite—don’t install this extension while it’s behaving so overzealously. If the current behaviour continues, I’ll be uninstalling this extension myself.
The point of this post is to show how nicely container queries can play with web components, but I want to also point out how nice the design of the web component is here: instead of just using an empty custom element, Max uses progressive enhancement to elevate the markup within the custom element.
At least, they don’t physically exist. They are intangible.
They’re in good company.
Feelings are intangible, but real. Hope. Despair.
Ideas are intangible: liberty, justice, socialism, capitalism.
The economy. Currency. All intangible. I’m sure we’ve all had those “college thoughts”:
Money isn’t real, man! They’re just bits of metal and pieces of paper ! Wake up, sheeple!
Nations are intangible. Geographically, France is a tangible, physical place. But France, the Republic, is an idea. Geographically, North America is a real, tangible, physical land mass. But ideas like “Canada” and “The United States” only exist in our minds.
Faith—the feeling—is intangible.
God—the idea—is intangible.
Art—the concept—is intangible.
A piece of art is an insantiation of the intangible concept of what art is.
Incidentally, I quite like Brian Eno’s working definition of what art is. Art is anything we don’t have to do. We don’t have to make paintings, or sculptures, or films, or music. We have to clothe ourselves for practical reasons, but we don’t have to make clothes beautiful. We have to prepare food to eat it, but don’t have to make it a joyous event.
By this definition, sports are also art. We don’t have to play football. Sports are also intangible.
A game of football is an instantiation of the intangible idea of what football is.
Football, chess, rugby, quiditch and rollerball are equally (in)tangible.
But football, chess and rugby have more consensus.
(Christianity, Islam, Judaism, and The Force are equally intangible, but Christianity, Islam, and Judaism have a bit more consensus than The Force).
HTML is intangible.
A web page is an instantiation of the intangible idea of what HTML is.
But we can document our shared consensus.
A rule book for football is like a web standard specification. A documentation of consensus.
By the way, economics, religions, sports and laws are all examples of intangibles that can’t be proven, because they all rely on their own internal logic—there is no outside data that can prove football or Hinduism or capitalism to be “true”. That’s very different to ideas like gravity, evolution, relativity, or germ theory—they are all intangible but provable. They are discovered, rather than created. They are part of objective reality.
Consensus reality is the collection of intangibles that we collectively agree to be true: economy, religion, law, web standards.
We treat consensus reality much the same as we treat objective reality: in our minds, football, capitalism, and Christianity are just as real as buildings, trees, and stars.
Sometimes consensus reality and objective reality get into fights.
Some people have tried to make a consensus reality around the accuracy of astrology or the efficacy of homeopathy, or ideas like the Earth being flat, 9-11 being an inside job, the moon landings being faked, the holocaust never having happened, or vaccines causing autism. These people are unfazed by objective reality, which disproves each one of these ideas.
For a long time, the consensus reality was that the sun revolved around the Earth. Copernicus and Galileo demonstrated that the objective reality was that the Earth (and all the other planets in our solar system) revolve around the sun. After the dust settled on that particular punch-up, we switched up our consensus reality. We changed the story.
That’s another way of thinking about consensus reality: our currencies, our religions, our sports and our laws are stories that we collectively choose to believe.
Web standards are a collection of intangibles that we collectively agree to be true. They’re our stories. They’re our collective consensus reality. They are what web browsers agree to implement, and what we agree to use.
The web is agreement.
For human beings to collaborate together, they need a shared purpose. They must have a shared consensus reality—a shared story.
Once a group of people share a purpose, they can work together to establish principles.
Design principles are points of agreement. There are design principles underlying every human endeavour. Sometimes they are tacit. Sometimes they are written down.
Patterns emerge from principles.
Here’s an example of a human endeavour: the creation of a nation state, like the United States of America.
The purpose is agreed in the declaration of independence.
The principles are documented in the constitution.
The patterns emerge in the form of laws.
Here’s one of the design principles behind HTML5. It’s my personal favourite—the priority of constituencies:
In case of conflict, consider users over authors over implementors over specifiers over theoretical purity.
“In case of conflict”—that’s exactly what a good design principle does! It establishes the boundaries of agreement. If you disagree with the design principles of a project, there probably isn’t much point contributing to that project.
Also, it’s reversible. You could imagine a different project that favoured theoretical purity above all else. In fact, that’s pretty much what XHTML 2 was all about.
XHTML 1 was simply HTML reformulated with the syntax of XML: lowercase tags, lowercase attributes, always quoting attribute values.
Remember HTML doesn’t care whether tags and attributes are uppercase or lowercase, or whether you put quotes around your attribute values. You can even leave out some closing tags.
So XHTML 1 was actually kind of a nice bit of agreement: professional web developers agreed on using lowercase tags and attributes, and we agreed to quote our attributes. Browsers didn’t care one way or the other.
But XHTML 2 was going to take the error-handling model of XML and apply it to HTML. This is the error handling model of XML: if the parser encounters a single error, don’t render the document.
Of course nobody agreed to this. Browsers didn’t agree to implement XHTML 2. Developers didn’t agree to use it. It ceased to exist.
It turns out that creating a format is relatively straightforward. But how do you turn something into a standard? The really hard part is getting agreement.
Sturgeon’s Law states:
90% of everything is crap.
Coincidentally, 90% is also the percentage of the world’s crap that gets transported by ocean. Your clothes, your food, your furniture, your electronics …chances are that at some point they were transported within an intermodal container.
These shipping containers are probably the most visible—and certainly one of the most important—standards in the physical world. Before the use of intermodal containers, loading and unloading cargo from ships was a long, laborious, and dangerous task.
Along came Malcom McLean who realised that the whole process could be made an order of magnitude more efficient if the cargo were stored in containers that could be moved from ship to truck to train.
But he wasn’t the only one. The movement towards containerisation was already happening independently around the world. But everyone was using different sized containers with different kinds of fittings. If this continued, the result would be a tower of Babel instead of smoothly running global logistics.
Malcolm McLean and his engineer Keith Tantlinger designed two crate sizes—20ft and 40ft—that would work for ships, trucks, and trains. Their design also incorporated an ingenious twistlock mechanism to secure containers together. But the extra step that would ensure that their design would win out was this: Tantlinger convinced McLean to give up the patent rights.
This wasn’t done out of any hippy-dippy ideology. These were hard-nosed businessmen. But they understood that a rising tide raises all boats, and they wanted all boats to be carrying the same kind of containers.
Without the threat of a patent lurking beneath the surface, ready to torpedo the potential benefits, the intermodal container went on to change the world economy. (The world economy is very large and intangible.)
The World Wide Web also ended up changing the world economy, and much more besides. And like the intermodal container, the World Wide Web is patent-free.
Again, this was a pragmatic choice to help foster adoption. When Tim Berners-Lee and his colleague Robert Cailleau were trying to get people to use their World Wide Web project they faced some stiff competition. Lots of people were already using Gopher. Anyone remember Gopher?
The seemingly unstoppable growth of the Gopher protocol was somewhat hobbled in the early ’90s when the University of Minnesota announced that it was going to start charging fees for using it. This was a cautionary lesson for Berners-Lee and Cailleau. They wanted to make sure that CERN didn’t make the same mistake.
On April 30th, 1993, the code for the World Wide Project was made freely available.
This is for everyone.
If you’re trying to get people to adopt a standard or use a new hypertext system, the biggest obstacle you’re going to face is inertia. As the brilliant computer scientist Grace Hopper used to say:
The most dangerous phrase in the English language is “We’ve always done it this way.”
Rear Admiral Grace Hopper waged war on business as usual. She was well aware how abritrary business as usual is. Business as usual is simply the current state of our consensus reality. She said:
Humans are allergic to change.
I try to fight that.
That’s why I have a clock on my wall that runs counter‐clockwise.
Our clocks are a perfect example of a ubiquitous but arbitrary convention. Why should clocks run clockwise rather than counter-clockwise?
One neat explanation is that clocks are mimicing the movement of a shadow across the face of a sundial …in the Northern hemisphere. Had clocks been invented in the Southern hemisphere, they would indeed run counter-clockwise.
But on the clock face itself, why do we carve up time into 24 hours? Why are there 60 minutes in an hour? Why are there are 60 seconds in a minute?
It probably all goes back to Babylonian accountants. Early cuneiform tablets show that they used a sexagecimal system for counting—that’s because 60 is the lowest number that can be divided evenly by 6, 5, 4, 3, 2, and 1.
But we don’t count in base 60; we count in base 10. That in itself is arbitrary—we just happen to have a total of ten digits on our hands.
So if the sexagesimal system of telling time is an accident of accounting, and base ten is more widespread, why don’t we switch to a decimal timekeeping system?
It has been tried. The French revolution introduced not just a new decimal calendar—much neater than our base 12 calendar—but also decimal time. Each day had ten hours. Each hour had 100 minutes. Each minute had 100 seconds. So much better!
It didn’t take. Humans are allergic to change. Sexagesimal time may be arbitrary and messy but …we’ve always done it this way.
Incidentally, this is also why I’m not holding my breath in anticipation of the USA ever switching to the metric system.
Instead of trying to completely change people’s behaviour, you’re likely to have more success by incrementally and subtly altering what people are used to.
That was certainly the case with the World Wide Web.
The Hypertext Transfer Protocol sits on top of the existing TCP/IP stack.
The key building block of the web is the URL. But instead of creating an entirely new addressing scheme, the web uses the existing Domain Name System.
Then there’s the lingua franca of the World Wide Web. These elements probably look familiar to you:
You recognise this language, right? That’s right—it’s SGML. Standard Generalised Markup Language.
Specifically, it’s CERN SGML—a flavour of SGML that was already popular at CERN when Tim Berners-Lee was working on the World Wide Project. He used this vocabulary as the basis for the HyperText Markup Language.
Because this vocabulary was already familiar to people at CERN, convincing them to use HTML wasn’t too much of a hard sell. They could take an existing SGML document, change the file extension to .htm and it would work in one of those new fangled web browsers.
In fact, HTML worked better than expected. The initial idea was that HTML pages would be little more than indices that pointed to other files containing the real meat and potatoes of content—spreadsheets, word processing documents, whatever. But to everyone’s surprise, people started writing and publishing content in HTML.
Was HTML the best format? Far from it. But it was just good enough and easy enough to get the job done.
It has since changed, but that change has happened according to another design principle:
Evolution, not revolution
From its humble beginnings with the handful of elements borrowed from CERN SGML, HTML has grown to encompass an additional 100 elements over its lifespan. And yet, it’s still technically the same format!
This is a classic example of the paradox called the Ship Of Theseus, also known as Trigger’s Broom.
You can take an HTML document written over two decades ago, and open it in a browser today.
Even more astonishing, you can take an HTML document written today and open it in a browser from two decades ago. That’s because the error-handling model of HTML has always been to simply ignore any tags it doesn’t recognise and render the content inside them.
That pattern of behaviour is a direct result of the design principle:
…document conformance requirements should be designed so that Web content can degrade gracefully in older or less capable user agents, even when making use of new elements, attributes, APIs and content models.
Here’s a picture from 2006.
That’s me in the cowboy hat—the picture was taken in Austin, Texas. This is an impromptu gathering of people involved in the microformats community.
Microformats, like any other standards, are sets of agreements. In this case, they’re agreements on which class values to use to mark up some of the missing elements from HTML—people, places, and events. That’s pretty much it.
And yes, they do have design principles—some very good ones—but that’s not why I’m showing this picture.
Some of the people in this picture—Tantek Çelik, Ryan King, and Chris Messina—were involved in the creation of BarCamp, a series of grassroots geek gatherings.
BarCamps sound like they shouldn’t work, but they do. The schedule for the event is arrived at collectively at the beginning of the gathering. It’s kind of amazing how the agreement emerges—rough consensus and running events.
In the run-up to a BarCamp in 2007, Chris Messina posted this message to the fledgeling social networking site, twitter.com:
how do you feel about using # (pound) for groups. As in #barcamp [msg]?
This was when tagging was all the rage. We were all about folksonomies back then. Chris proposed that we would call this a “hashtag”.
I wasn’t a fan:
Thinking that hashtags disrupt the reading flow of natural language. Sorry @factoryjoe
But it didn’t matter what I thought. People agreed to this convention, and after a while Twitter began turning the hashtagged words into links.
In doing so, they were following another HTML design principle:
Pave the cowpaths
It sounds like advice for agrarian architects, but its meaning is clarified:
When a practice is already widespread among authors, consider adopting it rather than forbidding it or inventing something new.
Twitter had previously paved a cowpath when people started prefacing usernames with the @ symbol. That convention didn’t come from Twitter, but they didn’t try to stop it. They rolled with it, and turned any username prefaced with an @ symbol into a link.
The @ symbol made sense because people were used to using it from email. The choice to use that symbol in email addresses was made by Ray Tomlinson. He needed a symbol to separate the person and the domain, looked down at his keyboard, saw the @ symbol, and thought “that’ll do.”
Perhaps Chris followed a similar process when he proposed the symbol for the hashtag.
It could have just as easily been called a “number tag” or “octothorpe tag” or “pound tag”.
This symbol started life as a shortcut for “pound”, or more specifically “libra pondo”, meaning a pound in weight. Libra pondo was abbreviated to lb when written. That got turned into a ligature ℔ when written hastily. That shape was the common ancestor of two symbols we use today: £ and #.
The eight-pointed symbol was (perhaps jokingly) renamed the octothorpe in the 1960s when it was added to telephone keypads. It’s still there on the digital keypad of your mobile phone. If you were to ask someone born in this millenium what that key is called, they would probably tell you it’s the hashtag key. And if they’re learning to read sheet music, I’ve heard tell that they refer to the sharp notes as hashtag notes.
If this upsets you, you might be the kind of person who rages at the word “literally” being used to mean “figuratively” or supermarkets with aisles for “10 items or less” instead of “10 items or fewer”.
Tough luck. The English language is agreement. That’s why English dictionaries exist not to dictate usage of the language, but to document usage.
It’s much the same with web standards bodies. They don’t carve the standards into tablets of stone and then come down the mountain to distribute them amongst the browsers. No, it’s what the browsers implement that gets carved in stone. That’s why it’s so important that browsers are in agreement. In the bad old days of the browser wars of the late 90s, we saw what happened when browsers implemented their own proprietary features.
Standards require interoperability.
Interoperability requires agreement.
So what we can learn from the history of standardisation?
Well, there are some direct lessons from the HTML design principles.
The priority of constituencies
Consider users over authors…
Listen, I want developer convenience as much as the next developer. But never at the expense of user needs.
I’ve often said that if I have the choice between making something my problem, and making it the user’s problem, I’ll make it my problem every time. That’s the job.
I worry that these days developer convenience is sometimes prized more highly than user needs. I think we could all use a priority of constituencies on every project we work on, and I would hope that we would prioritise users over authors.
Web content can degrade gracefully in older or less capable user agents…
I know that I go on about progressive enhancement a lot. Sometimes I make it sound like a silver bullet. Well, it kinda is.
I mean, you can’t just buy a bullet made of silver—you have to make it yourself. If you’re not used to crafting bullets from silver, it will take some getting used to.
Again, if developer convenience is your priority, silver bullets are hard to justify. But if you’re prioritising users over authors, progressive enhancement is the logical methodology to use.
Evolution, not revolution
It’s a testament to the power and flexibility of the web that we don’t have to build with progressive enhancement. We don’t have to build with a separation of concerns like structure, presentation, and behaviour.
But why do that? Is it because those native buttons and dropdowns might be inconsistent from browser to browser.
Consistency is not the purpose of the world wide web.
Universality is the key principle underlying the web.
Our patterns should reflect the intent of the medium.
Use what the browser gives you—build on top of those agreements. Because that’s the bigger lesson to be learned from the history of web standards, clocks, containers, and hashtags.
Our world is made up of incremental improvements to what has come before. And that’s how we will push forward to a better tomorrow: By building on top of what we already have instead of trying to create something entirely from scratch. And by working together to get agreement instead of going it alone.
The future can be a frightening prospect, and I often get people asking me for advice on how they should prepare for the web’s future. Usually they’re thinking about which programming language or framework or library they should be investing their time in. But these specific patterns matter much less than the broader principles of working together, collaborating and coming to agreement. It’s kind of insulting that we refer to these as “soft skills”—they couldn’t be more important.
Working on the web, it’s easy to get downhearted by the seemingly ephemeral nature of what we build. None of it is “real”; none of it is tangible. And yet, looking at the history of civilisation, it’s the intangibles that survive: ideas, philosophies, culture and concepts.
The future can be frightening because it is intangible and unknown. But like all the intangible pieces of our consensus reality, the future is something we construct …through agreement.
Now let’s agree to go forward together to build the future web!
A Firefox plugin that ring-fences all Facebook activity to the facebook.com domain. Once you close that tab, this extension takes care of garbage collection, ensuring that Facebook tracking scripts don’t leak into any other browsing activities.
While the strategy I outline in this post is production-ready, I see us as being still very much in the early stages of this space. As the web development community starts shifting its component design from viewport or device-oriented to container-oriented, I’m excited to see what possibilities and best practices emerge.
Every single browser maker has the same stance when it comes to features—they want to hear from developers at the coalface.
“Tell us what you want! We’re listening. We want to know which features to prioritise based on real-world feedback from developers like you.”
“How about container quer—”
I don’t think it’s an exaggeration to say that literally every web developer I know would love to have container queries. If you’ve worked on any responsive project of any size, you’re bound to have bumped up against the problem of only being able to respond to viewport size, rather than the size of the containing element. Without container queries, our design systems can never be truly modular.
But there’s a divide growing between what our responsive designs need to do, and the tools CSS gives us to meet those needs. We’re making design decisions at smaller and smaller levels, but our code asks us to bind those decisions to a larger, often-irrelevant abstraction of a “page.”
Now, as I understand it, Houdini is the CSS arm of the extensible web. Just as web components will allow us to create powerful new HTML without lobbying browser makers, Houdini will allow us to create powerful new CSS features without going cap-in-hand to standards bodies.
At this year’s CSS Day there were two Houdini talks. Tab gave a deep dive, and Philip talked specifically about Houdini as a breakthrough for polyfilling.
During the talks, you could send questions over Twitter that the speaker could be quizzed on afterwards. As Philip was talking, I began to tap out a question: “Could this be used to polyfill container queries?” My thumb was hovering over the tweet button at the very moment that Philip said in his talk, “This could be used to polyfill container queries.”
For that happen, browsers need to implement the layout API for Houdini. But I’m betting that browser makers will be far more receptive to calls to implement the layout API than calls for container queries directly.
Once we have that, there are two possible outcomes:
We try to polyfill container queries and find out that the browser makers were right—it’s simply too hard. This certainty is itself a useful outcome.
We successfully polyfill container queries, and then instead of asking browser makers to figure out implementation, we can hand it to them for standardisation.
But, as Eric Portis points out in his talk on container queries, Houdini is still a ways off (by the way, browser makers, that’s two different conference talks I’ve mentioned about container queries, just in case you were keeping track of how much developers want this).
However it happens, I’d just love to see some movement on container queries. I’m not alone.
I know container queries would revolutionize my design practice, and better prepare responsive design for mobile, desktop, tablet—and whatever’s coming next.
Chris rounds up the discussion that’s been happening around container queries, for and against.
Personally, I’d like to see about 100 different use cases fleshed out. If it turns out some of them can be done sans container queries, awesome, but it still seems highly likely to me that having container queries available to us would be mighty handy.
Seriously though, this is a good well-reasoned post about why container queries might not be the the all-healing solution for our responsive design problems. Thing is, I don’t think container queries are trying to be an all-encompassing solution, but rather a very useful solution for one particular class of problem.
So I don’t really see container queries competing with, say, grid layout (any more than grid layout is competing with flexbox), but rather one more tool that would be really useful to have in our arsenal.
Unsurprisingly, I completely and utterly agree with Ethan’s assessment here:
I’ve written some code that’s saying, “Once the screen is this size and the element appears in a different, smaller container, use a narrower layout on this element.”
But, well, that’s weird. Why can’t we apply styles based on the space available to the module we’re designing, rather than looking at the shape of the viewport?
I also share his frustration with the “math is hard; let’s go shopping” response from browser vendors:
There’s an incredible clamor for container queries, with folks from every corner of the responsive community asking for something that solves this problem. So personally, I’d love to see at least one browser vendor partner with the RICG, and get properly fired up about this.
We had to drag browser makers kicking and screaming to responsive images (to this day, Hixie maintains it’s not a problem that needs solving) and I suspect even more activism is going to be needed to get them to tackle container queries.
I like the idea of there being an Apollo-sized project all around us, if you just know where to look.
First, towering above and over the ship, are the loading cranes. Vast structures mounted on huge, four-legged frames, they resemble the naked scaffolding of unbuilt skyscrapers, and trigger nostalgic reminders of Saturn V rocket launch towers from the 1960s.
Once in port at night I saw one suddenly fire into life next to the ship in a stroboscopic explosion of lights, before it tracked slowly above my high vantage point, bathing me in the orange glow of a dozen small halogen suns.