Presuming this goes ahead, I believe this is the first time a standard, baseline-available feature will be removed.
There have been other removals, but few of them were of even specified features, and I don’t think any of them have been universally available. One of the closest might be showModalDialog <https://web.archive.org/web/20140401014356/http://dev.opera....>, but I gather mobile browsers never supported it anyway, and it was a really problematic feature from an implementation perspective too. You could argue Mutation Events from ~2011 qualifies¹; it was supplanted by Mutation Observers within two years, yet hung around for over a decade before being removed. As for things like Flash or FTP, those were never part of the web platform. Nor were they ever anything like universal anyway.
And so here they are now planning to remove a well-entrenched (if not especially commonly used) feature against the clearly-expressed will of the actual developers, in a one year time frame.
—⁂—
¹ I choose to disqualify Mutation Events because no one ever finished their implementation: WebKit heritage never did DOMAttrModified, Gecko/Trident heritage never did DOMNodeInsertedIntoDocument or DOMNodeRemovedFromDocument. Flimsy excuse, probably. If you want to count it, perhaps you’ll agree to consider XSLT the first time a major, standard, baseline-available feature will be removed?
Look, I wouldn't want to be responsible for maintaining anything to do with XML or XSLT either. All the technical arguments outlined for removing support make sense. But can users really call it an "update" if you could view an XML/XSLT document in Internet Explorer 6 or Chrome 1 but not the newest version?
I think this sets a concerning precedent for future deprecations, where parts of the web platform are rugpulled from developers because it's convenient for the browser vendors.
The security argument isn't that great. Google has been grumbling about xslt for more than a decade. If security was really their concern they could have replaced the compiled C library with an asm.js version ten years ago, much as they did for pdf rendering. They could use wasm now. They don't need to deprecate it.
> I think this sets a concerning precedent for future deprecations, where parts of the web platform are rugpulled from developers because it's convenient for the browser vendors.
Meanwhile, we don't seem to be learning from the past. If alert is fair game for removal, then so is every API we add to the platform if the web's future stewards deem it harmful.
Given Chrome's near-monopoly control of the browser market, I'm genuinely concerned about what this all means for the future of the web. An ad company shouldn't have this much influence over something that belongs to all of us. I don't know how to fix the standards process so that it's more representative of the diversity of the web's stakeholders, but I'm increasingly convinced that we need to figure it out.
Why? Answer this question: how can you use XML in a way that does not create horrible security vulnerabilities?
I know the answer, but it is extremely nontrivial, and highly dependent on which programming language, library, and sometimes even which library function you use. The fact that there's no easy way to use XML without creating a security footgun is reason enough to avoid it.
I myself know only two "security vulnerabilities":
1. The entity bomb. An entity that expands to another, which expands to another, and so on so that the final result is enormous. This is an issue of the implementation: if it expands the entities eagerly then the bomb will work. But it it first examines them and checks how much space they require it can safely reject the document if it exceeds some configurable limit. As far as I know this has been fixed in all XML processors.
2. An entity can resolve to a local or remote file. First, this is a feature. Imagine a large collection of bibliographic records, each in a separate file. A publication can provide its list of references as a list of entities that refer to these files using entities. (There is an RFC that uses this as an example.) And, of course, we need both local and remote entities.
But, of course, if your XML comes from an untrusted source and you read it with this feature enabled this can lead to obvious disasters. Yet it is not a vulnerability of XML. Again, as far as I know all XML processors can disable access to local or remote entities.
You can say the same thing about HTML forms (see CORS et. al.), innerHTML, rendering user-submitted data, SQL, JSON, etc. That does not mean that you remove HTML forms or SQL databases.
If you removed support for anything that has/could have security vulnerabilities you would remove everything.
That's not any different than JSON, though. Injection, insecure deserialization , etc. can all exist in that format as well.
There's plenty of reasons to criticize XML, and plenty more to criticize XSLT. But security being the one you call out feels at least moderately disingenuous. It's a criticism of the library, not the standard or the format.
There's an extremely large difference in that a JSON deserialization vulnerability is almost always a bug in the library. JSON is not an inherently insecure format.
XML is so complex that a 100% bug-free compliant library is inherently insecure, and the vulnerability is a "user is holding it wrong" siutation, they should have disabled specific XML features etc. That means XML is an inherently much more insecure format.
There's a reason there's name for vulnerabilities like XML External Entity (XXE) injection [1] and they're named after XML, and not "bug in lib/software X". JSON and most other data formats don't have that.
XML has a relatively small specification. For some time I used to "print" web pages into PDF (or XPS) and I remember that XML 1.0 specification was three times shorter than that of YAML (it was YAML 2, I think, I don't quite remember). And XML included a) serialization itself, b) simple grammar specification in the form of DTD, c) things like internal references from one element to another, d) basic support for other notations, so that you could add, say, LaTeX math notation and formally define that this element's content is in this notation. I do not think (b), (c) or (d) were part of YAML or any other similar format.
I'm going to say this calmly and politely to you. You think this is some kind of "fun" spicy take, but considering that some rely on these technologies I find your remark to be incredibly offensive and insulting. If we were discussing this face to face you'd have a major problem right now
Yeah… on the one hand I don’t care about XSLT, haven’t used it in more than 20 years, and never intend to use it again.
On the other… I’m still a bit uncomfortable with the proposed change because it reads as another example of Google unilaterally dictating the future of the web, which I’ve never liked or supported.
XSLT is not trendy technology but I doubt it's worse than WebBluetooth, WebUSB or WebGL from a complexity/maintenance/security perspective.
This change definitely feels like moving a (tiny) step into the direction of turning the Web platform into something akin to the Android dev experience.
The post indicates WHATWG has "broad agreement" about removing XSLT. I don't know how many seats Google has there, but on the surface it doesn't sound like a unilateral decision.
Very fair point, and that cuts to the root of why I’m uncomfortable with it.
I mean, presumably they have the usage stats… except that plenty of enterprises deployed XSLT apps back in the day - it was on a massive portion of the job ads I was looking at in 2000 to 2002 - and I’d bet a chunk of those legacy systems are still running. I’d also bet a good chunk of those systems are running in the sort of orgs that won’t allow submission of telemetry to Google, so Google’s usage stats underreport real world usage.
To me it looks like zero effort has been made to engage with Mozilla, Apple, etc., on the right way forward here - just Google high-handedly making moves and abusing their position as per usual.
> To me it looks like zero effort has been made to engage with Mozilla, Apple, etc., on the right way forward here - just Google high-handedly making moves and abusing their position as per usual.
What would make you think that? The submission links prominently to the whatwg proposal github issue, which is the forum where that engagement would happen. It explicitly deep-links to Mozilla's and Apple's posts in that thread. It has the usage stats that you just presume exist.
It's like you just made up a scenario and posted it as facts with zero effort to verify any of it.
> As for things like Flash or FTP, those were never part of the web platform. Nor were they ever anything like universal anyway.
I feel like there is a bit of a no true scotsman to this.
XSLT was always kind of on the side. If FTP or flash weren't part of the web platform than i dont know that xslt is either. Flash might not be "standard" but it certainly had more users in its heyday than xslt ever did.
Does removal of tls 1.1 count here? Its all kind of a matter of definitions.
Personally i always thought the <keygen> tag was really cool.
XSLT is an integrated part of the web platform: browsers can load XML documents that use an XSLT stylesheet, and even inside HTML documents XSLTProcessor is available.
FTP was never integrated: it just so happened that some platforms shipped a protocol handler for it, and some browsers included an FTP protocol handler themselves. But I don’t believe you could ever, say, fetch("ftp://…").
Flash, like applets, was even more clearly not part of the web platform. It was a popular third-party extension that you had to go out of your way to install… or wait for it to be installed by some shady installer Adobe paid off. Though I have a vague feeling Chrome shipped with Flash at some point? I don’t remember all the history any more, this is a long time ago.
Older versions of TLS is definitely a more interesting case. It’s a different kind of feature, but… yeah, I might consider it.
<keygen> was an interesting concept that in practice went nowhere.
> FTP was never integrated: it just so happened that some platforms shipped a protocol handler for it, and some browsers included an FTP protocol handler themselves. But I don’t believe you could ever, say, fetch("ftp://…").
With flash - that might all be true, but there was a time when many websites required it. It might not have been a de jure standard but it was a de facto standard. To the point where a browser not supporting it was considered broken. Apple refusing to support it was incredibly controversial at the time.
<marquee> still works fine. Better than it used to, honestly, as at least Firefox and Chromium removed the deliberate low frame rate at some point in the last decade.
<blink> was never universal, contrary to popular impression: <https://en.wikipedia.org/wiki/Blink_element#:~:text=The%20bl...>, it was only ever supported by Netscape/Gecko/Presto, never Trident/WebKit. Part of the joke of Blink is that it never supported <blink>.
> Netscape only agreed to remove the blink tag from their browser if Microsoft agreed to get rid of the marquee tag in theirs during an HTML ERB meeting in February 1996.
Fun times. Both essentially accusing the other of having a dumb tag.
Extremely popular in Indian government websites, often implemented with <marquee>, but also often implemented by a different mechanism so that it can stop scrolling on mouseover.
Indian Rail <https://www.indianrail.gov.in/> has one containing the chart from a mid-2024 train accident, an invitation to contribute a recording of the national anthem from 2021, and a link to parcel booking. Oh, and “NEW!” animated GIFs between the three items.
XSLT is to my knowledge the only client side technology that lets you include chunks of HTML without using JavaScript and without server-side technology.
XSLT lets you build completely static websites without having to use copy paste or a static website generator to handle the common stuff like menus.
I did that. You can write .rst, then transform it into XML with 'rst2xml' and then generate both HTML and PDF (using XSL-FO). (I myself also did a little literate programming this way: I added a special reStructuredText directive to mark code snippets, then extracted and joined them together into files.)
One might think that as technology progresses more and more pieces of older technologies get revived and incorporated into the available tooling. Yet the very opposite thing happens: good and working parts are removed because the richest companies on Earth "cannot afford" to keep them.
In 19th century Russia there was a thinker, N. F. Fedorov, who wanted to revive all dead people. He saw it as the ultimate goal of humanity. (He worked in a library, a very telling occupation. He spent most of what he earned to support others.) We do not know how to revive dead people or if we can do that at all; but we certainly can revive old tech or just not let it die.
Of course, this job is not for everyone. We cannot count on the richest, apparently, they're too busy getting richer. This is a job for monks.
> One might think that as technology progresses more and more pieces of older technologies get revived and incorporated into the available tooling. Yet the very opposite thing happens: good and working parts are removed because the richest companies on Earth "cannot afford" to keep them.
I think it is because nobody, excepts a handful of people around the world, feels the need to use XSLT in lieu of CSS. Hence, CSS has evolved over time while XSLT has not.
This is how the world works: technology advances and old things become obsolete over time.
The browser vendors are arguing XSLT is neither good - it's adoption has always been lacking because of complexity and has now become a niche technology because better alternatives exist - nor working, see the mentioned security and maintenance issues. I think they have a good point there.
Well, one can argue that Metafont fonts are "niche". No font library supports them. But from what I know they could easily be technically superior to, say, Type 1 fonts. Of course a technology will be niche if it is treated as a poor relative. XSLT could be an alternative to CSS, for example. It is definitely more powerful than CSS, because it actually transforms the document, not just alters the appearance and sprinkles some automatic content here and there. And is actually used this way in XSL-FO, which, I think, powers a substantial share of technical publishing.
XSLT as an alternative to CSS sounds like a nightmare, though to be fair, I felt the same way about XSLT as an alternative to DSSSL, which to me felt more like a satirical response to the "XML everywhere" zeitgeist in the spirit of INTERCAL and eating babies than a serious design proposal.
Pertinent to your point, he wanted to resurrect ancestors so that they, too, could participate in the general resurrection. The analogy being old technology resurrected to work alongside contemporary technology towards a shared goal.
Moreover: there is no JS solution being so stable and for so long as that standard: "25 year old version of XSLT".
Can be "made with JS" doesn't mean that by chance it would be in any bit better than long proved and still used solution - not a one of many crippled, always changing, excluding imitations of it - for example like that one: https://news.ycombinator.com/item?id=45183624 (no caching, not instant, transparent or othogonal etc.).
With XSLT removed, Chrome can not claim to be a standard internet browser neither.
There is nothing wrong with XSLT - it's just Google not wanting to fix few bugs since decades - but others have to follow, nothing changes.
XSLT is great, but its core problem is that the tooling is awful. And a lot of this has to do with the primary author of the XSLT specification, keeping a proprietary (and expensive) library as the main library that implements the ungodly terse spec. Simpler standards and open tooling won out, not just because it was simpler, but because there wasn't someone chiefly in charge of the spec essentially making the tooling an enterprise sales funnel. A shame.
Once upon a time HTML was a kind of XML, which is why the current version is very similar to XML and hence painful to write. This in turn is why we tend to use programmatic tools to handle the HTML, and you should if you work with XML too.
I doubt it was common. But, for example, there is such thing as Schematron: this is a special notation that checks that an XML document follows business rules and the final tool that it produces is a custom XSLT that transforms the document into the report.
(I'm also doing this currently; I need to prepare a sort of an annotated patch to an XML document, so I concocted a notation that describes edits and use it to generate both the documentation that highlights differences and also the patch itself; the patch comes out as XSLT.)
For what it's worth, this is the difference between private-sector and public-sector development. The public sector would have instead argued for some budget to hire developers to maintain libxslt and issue RFPs for grant money to rewrite it in Rust for memory safety guarantees. The private sector decides that it's just not a profitable use of resources and moves to cancel support.
The question isn't whether or not you use XSLT yourself, it's whether you use a different feature that could be deemed unprofitable and slammed on the chopping block. And therefore a question of whether it wouldn't be better for everyone for this work to be publicly funded instead.
I’m lost at “the public sector would have argued for some budget”. Xslt and libxslt are used across a no - trivial amount of deployments.
Why would the public sector feel bound to support it as opposed to pivot in the same direction the winds are blowing?
Outside the idiocy of this particular administration in the US, gov is pivoting toward more commercial norms (with compliance/etc for gov cloud and etc compliance).
> Why would the public sector feel bound to support it
The underlying axiom is the Pareto principle - that you get 80% of the benefit from the first 20% of the work, and getting the last 20% of the benefit takes up 80% of the work. The private sector will stop funding after the first 80% of benefit (it's not profitable to chase the last 20%) but the public sector is usually mandated to support everybody so it is indeed required to put in that extra effort.
One extremely important use-case is for RSS/Atom feeds. Right now, clicking on a link to feed brings up a wall of XML (or worse, a download link). If the feed has an XSLT stylesheet, it can be presented in a way that a newcomer can understand and use.
XSLT is wildly under-appreciated. You can take hierarchical data and bend it to your will, remix it, and turn it inside out if you wish. Those developers working with XML should consider XSLT before rolling their own manipulation script.
Now, do you need XSLT’s capabilities in the browser? Their stats say no one’s really using it.
I want browsers to be minimal and simple. For example, canvas should only provide a framebuffer to draw into, and all the rest can be done with WASM libraries. Web Audio should only provide an audio thread, and things like low-pass filters can be implemented in WASM. WebRTC should only provide UDP support, etc.
This would make creating competition easier and reduce attack surface. As a nice side effect, it would become impossible to use canvas or web audio for fingerprinting.
Firstly, it puts a huge burden of non-value-adding work onto developers and the organisations they work for.
Secondly it would lead to even higher frequency and prevalence of people inventing their own half-arsed ways of doing things that used to be in the box. Nobody would think about standard usability affordances, accessibility, etc.
Thirdly, it would simply move the attack surface into an emergent library ecosystem without really solving anything.
Fourthly, it would increase website payloads even further. Developers have historically been awful at using bandwidth efficiently (still a concern in many scenarios due to connectivity limitations and costs), and we don’t need to offer more opportunities for them to demonstrate how terrible and undisciplined they are at it.
Fifthly, not everyone wants or needs (or should!) to learn web assembly in the same way that not everyone wants or needs to learn x86/64 assembly, ARM assembly, C or Rust.
Sixthly, it would lead to a huge amount of retooling and rewriting which, yes, to some extent would happen anyway because, apparently, we all love endless churn masquerading as progress, but it would be considerably worse.
The web would become significantly buggier and more unusable as a result of all of the above.
That sounds awful! For a start, accessibility would get even worse than it already is. The browser may become more “minimal” and “simple” from the point of view of the implementer, but certainly not the user.
On the off chance that by “canvas” you didn’t mean all rendering (which is a terrible idea for reasons addressed by others) but only what is currently covered by <canvas>—the frame buffer approach is incompatible with GPU acceleration, so 3D would basically not be possible. For better or for worse, WebGL is pretty close to the minimum acceptable for that kind of functionality.
I like the idea but you could take it a step further and have just a core
virtual machine that you could attach virtual (input/output) devices to. So
then the canvas and audio would just be virtual devices that met some
specification. Or say for example, you just want to listen to an audio
playlist, you could attach an audio device, a keyboard and a terminal device
(for feedback). A canvas device wouldn't necessarily be required (if there was
no use for one). And it would be up to the user to attach the devices required
by an application, or at least the user would have direct control.
TLDR: QEMU but much simpler and only WASM need be supported.
During my college undergrad CS series we had a practicum with a real engineer from HP or somewhere. Our project was to help the world find and download printer drivers over the web. The project was to make a Java web service send XML that conformed to a schema, which would be turned into a webpage by a transform aka XSLT. It seemed convoluted at the time. The teacher showed us “the how” but I guess “the why” was left as an exercise for the reader. I never understood the big picture- at the time it seemed rather complex. But now I realize this probably would have scaled quite well on turn of the century hardware.
Gecko currently has much deeper integration of the XSLT engine with the browser internals: The XSLT engine operates on the browser DOM implementation. WebKit and Chromium integrate with libxslt in a way that's inherently bad for performance ( https://github.com/whatwg/html/issues/11578#issuecomment-321... )
Just Firefox XSLT is faster, better, cheaper than Google's (and JS), same, old Firefox extensions were to powerful Google could compete with Firefox (or block adblocks).
JS is very needed for ads, tracking and other strings attaching - and XSLT is not for that - but would make JS mostly obsolete in many cases.. [..]
Google pay Mozilla to criple Firefox. It's money from ads, to not let the web be free. Right now, how much $ and CPU power a JS engine could cost, for that, is irrelevant - except for the final user [paying for that saving on costs by some big company - or having to redo NOW in less efficient way something that still works well so far regardless of decades passed] !
Moreover.. Content First - and browser is a secondary thing to existing content (Chrome came after) - not the (double) opposite (primary, for ads n tracking instead)
- isn't Google as a public servant - so part of their job is to fix their bugs - but not in the position to decide to kill someone else existing content or solution - for not displaying ads so easy?
Makes sense, but I'll have to update my rss feed (which currently uses XSLT to display in browsers that don't have native RSS capabilities - i.e. basically all modern browsers)
It's used a lot in the publishing industry, which stores the content in JATS and other similar XML markup. It's also used by the US government for bills, etc.
Typically, these use XSLT on the backend to transform the content to HTML to be sent to the web browser.
And there's RSS which was mentioned in the previous discussions. Podcasts will typically have HTML renderings of that data, but if you opened the RSS in a web browser you could use XSLT to provide a user-friendly view of the content.
XSLT can also be used to provide fallback rendering for unsupported content, such as converting MathML to HTML for browsers without support. -- Chrome as of 109 supports MathML Core, but doesn't support the content markup (used for more semantic markup of common constructs like N-ary sum, integrals, etc.), so would still need something like XSLT to convert that markup to the presentation markup supported by Chrome.
It's not only in Germany, it's an EU mandated thing to have e-invoicing to prevent fraud and whatever other things the bureaucrats in Brussels felt like it would be solved with technology.
And yes, sadly the powers that be decided that this crap needs to be XML. Because why not, why use a modern standard...
How about we agree to disagree? XML has no place in the modern world. It it wouldn't be for the likes of Microsoft, IBM, Oracle and a few others that keep using it and pushing it, it would have sailed into the sunset a long time ago.
Wasn't the social contract that get the market share that you can use Chrome to browse all the web already existing as well as by using the other browsers - means not discriminating (non-profit, government, older sites or those working well without JS for ads to be tracked), and not to kill parts of that web when convenient ?
I'm an XSLT fanboy. I've used it for all kinds of things, from generating docs to generating entire UIs from an XML declaration. But never in all my years have I used it in a browser. I didn't even know that was an option.
Part of the issue is that XSLT in the browser is stuck at version 1.0 so lacks a lot of the improvements added in 2.0 and later that make working with it a lot nicer.
It would be kind of nice if HTML had something where you can make a remote fetch request for JSON or XML data and get it formatted in some CSS-defined way, without Javascript.
Why not just expose an HTML representation of the data? Why must it remain JSON, XML, CSV, Parquet, fixed length or tab delimited files, ProtoBuf, etc?
API’s should provide content in the format asked of them. CSS should be used to style that content.
This is largely solved in RFC-6838 which is about “how media types, representation and the interoperability problem is solved”. https://datatracker.ietf.org/doc/rfc6838/
Already supported by .NET Web APIs, Django, Spring, Node, Laravel, RoR, etc.
Less mature ecosystems like Golang have solutions, they’re just very much patch-work/RYO.
Or even use OpenResty or njs in Nginx, which puts the transformation in the web service layer and not the web application layer. So your data might be JSON blob, it’ll convert to HTML in real-time. Something similar can be achieved elsewhere like Apache using mod_lua etc.
I think bastardising one format (HTML), to support another format (JSON), is probably not the right move. We’ve already done that with stuff like media queries which have been abused for fingerprinting, or “has” CSS selectors for shitty layout hacks by devs who refuse to fix the underlying structure.
Rather than adding an HTML endpoint in addition to the XML or JSON, expose the data and link it to stylesheets that dynamically render the HTML client side.
That's the whole point of XSLT, ship the data and tell the browser how to transform it to HTML.
Because so you can separate the data from the layout. You can e.g. return a list of strings and then the strings become the summaries of a set of details elements.
The description you give inherently changes the structure of the data, and JavaScript would be the best way to post-process it. CSS is about styling the structure of HTML, not structural changes to it.
Unless you have a good example, I think you’re coming at this from an “everything’s a nail if the only tool I have is a hammer”.
CSS based views of XML are somewhat useful, but are limited in what they can do. Especially things like setting the HTML title, generating a table of contents, or transforming data like dates and times.
So, instead of a giant corporation with all the resources in the world stepping in and maintaining a core web library, they're deciding to remove a feature because the lone maintainer who has been doing a thankless job for years has decided to unsurprisingly step down from this role.
I suppose we can expect support for XML to be dropped soon as well, since libxml2 maintenance is ending this year.
I don't buy the excuse of low number of users. Google's AMP has abysmal usage numbers, yet they're still maintaining that garbage.
Google has been a net negative for the web, and is directly responsible for the shit show it is today. An entirely expected outcome considering it is steered by corporate interests.
Probably more due to the fact that browsers only support the 1999 XSLT 1.0, and no one has shown any interest in implementing XSLT 2.0 from 2001, or XSLT 3.0 from 2017. So there has been a sign of lack of desire since 2001 at minimum, likewise there is seemingly no attempt by anyone to document incompatibilities and push browsers to unify their incompatibilities like HTML, JS, and CSS.
The writing has been on the wall for a long while. Mozilla hasn't stepped up, Google hasn't stepped up, GNOME hasn't stepped up, Oracle hasn't stepped up, etc. Maybe its just a format that once anyone gets involved with, they no longer want to be involved with it any further.
The whole point of browser standards is to avoid every browser picking and choosing features their own features, its a terrible end user experience.
No one should fork chrome and maintain it with XSLT still baked in. Not only would it go unused, it doesn't help anyone wanting to ship XSLT on a site because users would literally have to install a different browser just to see that page.
A kitchen sink software implies an image of a kitchen sink filled with dirty dishes. But the solution is not to throw them all away and leave a single dish, still dirty, but at least looking manageable. The solution is to wash all dishes and put them neatly on the rack.
> People are free to make their own browser if they want.
Some peple are doing that[1]. It's not a matter of desire, but of the amount of effort and resources required to build and maintain the insanity of the modern web stack.
> Part of the reason google chrome won the browser wars is because they are willing to make decisions like this.
Eh, no. Google Chrome won because it is backed by one of the largest adtech corporations with enough resources and influence to make it happen. They're better at this than Microsoft was with IE, but that's not saying much. When it launched it introduced some interesting and novel features, but it's now nothing but a marketing funnel for Google's services.
> Some peple are doing that[1]. It's not a matter of desire, but of the amount of effort and resources required to build and maintain the insanity of the modern web stack.
People say that, but i don't think that's true. The web stack was always insane, the only difference is its documented now. I think now is a much easier time to build a web browser than the past was.
Not to mention the irony of complaining the web stack is insane while insisting a really difficult to support feature that never saw much use should be kept forever because reasons.
> Eh, no. Google Chrome won because it is backed by one of the largest adtech corporations with enough resources and influence to make it happen
Google won because nobody else really tried.
Firefox has been a dumpster fire of bad management decisions and has reduced itself to basically just copying google's every decision sacraficing any unique identity of its own.
Safari is never going win when it is mac only and apple doesnt seem to fund it very hard.
Most of the rest are just chrome reskins that dont deserve to be called a separate browser.
Maybe something interesting might come out of ladybird. Its still quite early to tell.
- built on a very solid foundation from the start (it started out as a webkit fork), and was generally a good fast browser. This is the very minor part
Ah yes. That's why Chrome bravely refuses to be a kitchen sink. It only has a small set of available APIs like USB, MIDI, Serial, Sensors (Ambient Light, Gyroscopes etc.), HID, Bluetooth, Barcode detection, Battery Status, Device Memory, Credential Management, three different file APIs, Gamepads, three different background sync APIs, NFC...
XSLT is no more "baggage" than HTML itself. Removing it in no way "moves the web forward". And integrating technologies part of the current hype cycle, which very well may disappear in a year, is a terrible idea.
Presuming this goes ahead, I believe this is the first time a standard, baseline-available feature will be removed.
There have been other removals, but few of them were of even specified features, and I don’t think any of them have been universally available. One of the closest might be showModalDialog <https://web.archive.org/web/20140401014356/http://dev.opera....>, but I gather mobile browsers never supported it anyway, and it was a really problematic feature from an implementation perspective too. You could argue Mutation Events from ~2011 qualifies¹; it was supplanted by Mutation Observers within two years, yet hung around for over a decade before being removed. As for things like Flash or FTP, those were never part of the web platform. Nor were they ever anything like universal anyway.
And so here they are now planning to remove a well-entrenched (if not especially commonly used) feature against the clearly-expressed will of the actual developers, in a one year time frame.
—⁂—
¹ I choose to disqualify Mutation Events because no one ever finished their implementation: WebKit heritage never did DOMAttrModified, Gecko/Trident heritage never did DOMNodeInsertedIntoDocument or DOMNodeRemovedFromDocument. Flimsy excuse, probably. If you want to count it, perhaps you’ll agree to consider XSLT the first time a major, standard, baseline-available feature will be removed?
Look, I wouldn't want to be responsible for maintaining anything to do with XML or XSLT either. All the technical arguments outlined for removing support make sense. But can users really call it an "update" if you could view an XML/XSLT document in Internet Explorer 6 or Chrome 1 but not the newest version?
I think this sets a concerning precedent for future deprecations, where parts of the web platform are rugpulled from developers because it's convenient for the browser vendors.
The security argument isn't that great. Google has been grumbling about xslt for more than a decade. If security was really their concern they could have replaced the compiled C library with an asm.js version ten years ago, much as they did for pdf rendering. They could use wasm now. They don't need to deprecate it.
> I think this sets a concerning precedent for future deprecations, where parts of the web platform are rugpulled from developers because it's convenient for the browser vendors.
The precedent was already set when they tried to remove alert/prompt. See https://dev.to/richharris/stay-alert-d and https://css-tricks.com/choice-words-about-the-upcoming-depre...
Only a large public outcry stopped them, barely.
To quote from the first link:
--- start quote ---
Meanwhile, we don't seem to be learning from the past. If alert is fair game for removal, then so is every API we add to the platform if the web's future stewards deem it harmful.
Given Chrome's near-monopoly control of the browser market, I'm genuinely concerned about what this all means for the future of the web. An ad company shouldn't have this much influence over something that belongs to all of us. I don't know how to fix the standards process so that it's more representative of the diversity of the web's stakeholders, but I'm increasingly convinced that we need to figure it out.
--- end quote ---
> maintaining anything to do with XML or XSLT either.
These aren't horrible formats or standards. XSLT is actually somewhat elegant.
Counterpoint: XML is a horrible format.
Why? Answer this question: how can you use XML in a way that does not create horrible security vulnerabilities?
I know the answer, but it is extremely nontrivial, and highly dependent on which programming language, library, and sometimes even which library function you use. The fact that there's no easy way to use XML without creating a security footgun is reason enough to avoid it.
I myself know only two "security vulnerabilities":
1. The entity bomb. An entity that expands to another, which expands to another, and so on so that the final result is enormous. This is an issue of the implementation: if it expands the entities eagerly then the bomb will work. But it it first examines them and checks how much space they require it can safely reject the document if it exceeds some configurable limit. As far as I know this has been fixed in all XML processors.
2. An entity can resolve to a local or remote file. First, this is a feature. Imagine a large collection of bibliographic records, each in a separate file. A publication can provide its list of references as a list of entities that refer to these files using entities. (There is an RFC that uses this as an example.) And, of course, we need both local and remote entities.
But, of course, if your XML comes from an untrusted source and you read it with this feature enabled this can lead to obvious disasters. Yet it is not a vulnerability of XML. Again, as far as I know all XML processors can disable access to local or remote entities.
You can say the same thing about HTML forms (see CORS et. al.), innerHTML, rendering user-submitted data, SQL, JSON, etc. That does not mean that you remove HTML forms or SQL databases.
If you removed support for anything that has/could have security vulnerabilities you would remove everything.
That's not any different than JSON, though. Injection, insecure deserialization , etc. can all exist in that format as well.
There's plenty of reasons to criticize XML, and plenty more to criticize XSLT. But security being the one you call out feels at least moderately disingenuous. It's a criticism of the library, not the standard or the format.
There's an extremely large difference in that a JSON deserialization vulnerability is almost always a bug in the library. JSON is not an inherently insecure format.
XML is so complex that a 100% bug-free compliant library is inherently insecure, and the vulnerability is a "user is holding it wrong" siutation, they should have disabled specific XML features etc. That means XML is an inherently much more insecure format.
There's a reason there's name for vulnerabilities like XML External Entity (XXE) injection [1] and they're named after XML, and not "bug in lib/software X". JSON and most other data formats don't have that.
[1] https://portswigger.net/web-security/xxe
XML has a relatively small specification. For some time I used to "print" web pages into PDF (or XPS) and I remember that XML 1.0 specification was three times shorter than that of YAML (it was YAML 2, I think, I don't quite remember). And XML included a) serialization itself, b) simple grammar specification in the form of DTD, c) things like internal references from one element to another, d) basic support for other notations, so that you could add, say, LaTeX math notation and formally define that this element's content is in this notation. I do not think (b), (c) or (d) were part of YAML or any other similar format.
Do those points not apply verbatim to HTML?
Let alone JavaScript…
> But can users really call it an "update" if you could view an XML/XSLT document in Internet Explorer 6 or Chrome 1 but not the newest version?
Yes. Just like we don't have Flash everywhere or ActiveX. Good riddance to them and to XSLT and, fingers crossed, XML in the future.
I'm going to say this calmly and politely to you. You think this is some kind of "fun" spicy take, but considering that some rely on these technologies I find your remark to be incredibly offensive and insulting. If we were discussing this face to face you'd have a major problem right now
It would help if you would give some details about how you rely on Flash/ActiveX/XML. Is it a matter of life and death? If so, how?
Yeah… on the one hand I don’t care about XSLT, haven’t used it in more than 20 years, and never intend to use it again.
On the other… I’m still a bit uncomfortable with the proposed change because it reads as another example of Google unilaterally dictating the future of the web, which I’ve never liked or supported.
Feeling quite conflicted.
XSLT is not trendy technology but I doubt it's worse than WebBluetooth, WebUSB or WebGL from a complexity/maintenance/security perspective.
This change definitely feels like moving a (tiny) step into the direction of turning the Web platform into something akin to the Android dev experience.
The post indicates WHATWG has "broad agreement" about removing XSLT. I don't know how many seats Google has there, but on the surface it doesn't sound like a unilateral decision.
"It didn't affect me so I didn't care." Is usually how control is amassed by Google (or authoritarians).
Very fair point, and that cuts to the root of why I’m uncomfortable with it.
I mean, presumably they have the usage stats… except that plenty of enterprises deployed XSLT apps back in the day - it was on a massive portion of the job ads I was looking at in 2000 to 2002 - and I’d bet a chunk of those legacy systems are still running. I’d also bet a good chunk of those systems are running in the sort of orgs that won’t allow submission of telemetry to Google, so Google’s usage stats underreport real world usage.
To me it looks like zero effort has been made to engage with Mozilla, Apple, etc., on the right way forward here - just Google high-handedly making moves and abusing their position as per usual.
> To me it looks like zero effort has been made to engage with Mozilla, Apple, etc., on the right way forward here - just Google high-handedly making moves and abusing their position as per usual.
What would make you think that? The submission links prominently to the whatwg proposal github issue, which is the forum where that engagement would happen. It explicitly deep-links to Mozilla's and Apple's posts in that thread. It has the usage stats that you just presume exist.
It's like you just made up a scenario and posted it as facts with zero effort to verify any of it.
> As for things like Flash or FTP, those were never part of the web platform. Nor were they ever anything like universal anyway.
I feel like there is a bit of a no true scotsman to this.
XSLT was always kind of on the side. If FTP or flash weren't part of the web platform than i dont know that xslt is either. Flash might not be "standard" but it certainly had more users in its heyday than xslt ever did.
Does removal of tls 1.1 count here? Its all kind of a matter of definitions.
Personally i always thought the <keygen> tag was really cool.
XSLT is an integrated part of the web platform: browsers can load XML documents that use an XSLT stylesheet, and even inside HTML documents XSLTProcessor is available.
FTP was never integrated: it just so happened that some platforms shipped a protocol handler for it, and some browsers included an FTP protocol handler themselves. But I don’t believe you could ever, say, fetch("ftp://…").
Flash, like applets, was even more clearly not part of the web platform. It was a popular third-party extension that you had to go out of your way to install… or wait for it to be installed by some shady installer Adobe paid off. Though I have a vague feeling Chrome shipped with Flash at some point? I don’t remember all the history any more, this is a long time ago.
Older versions of TLS is definitely a more interesting case. It’s a different kind of feature, but… yeah, I might consider it.
<keygen> was an interesting concept that in practice went nowhere.
> FTP was never integrated: it just so happened that some platforms shipped a protocol handler for it, and some browsers included an FTP protocol handler themselves. But I don’t believe you could ever, say, fetch("ftp://…").
I never tried, but i believe the relavent spec said it should work, until it was deprecated and removed from the standard https://github.com/whatwg/fetch/pull/1166
With flash - that might all be true, but there was a time when many websites required it. It might not have been a de jure standard but it was a de facto standard. To the point where a browser not supporting it was considered broken. Apple refusing to support it was incredibly controversial at the time.
XSLT is also a really problematic feature from an implementation perspective (albeit in a different way than showModalDialog or MutationObservers).
I’m not a Chrome dev but I think they have decent reasons for going this way.
Maybe the blink or marquee tags? I’m pretty sure those don’t work anymore...
<marquee> still works fine. Better than it used to, honestly, as at least Firefox and Chromium removed the deliberate low frame rate at some point in the last decade.
<blink> was never universal, contrary to popular impression: <https://en.wikipedia.org/wiki/Blink_element#:~:text=The%20bl...>, it was only ever supported by Netscape/Gecko/Presto, never Trident/WebKit. Part of the joke of Blink is that it never supported <blink>.
> Netscape only agreed to remove the blink tag from their browser if Microsoft agreed to get rid of the marquee tag in theirs during an HTML ERB meeting in February 1996.
Fun times. Both essentially accusing the other of having a dumb tag.
marquee is used religiously by some official Indian websites [1]. It's the primary mechanism they use to deliver news or updates on the websites.
[1] For example: https://www.nagpuruniversity.ac.in/
Extremely popular in Indian government websites, often implemented with <marquee>, but also often implemented by a different mechanism so that it can stop scrolling on mouseover.
Indian Rail <https://www.indianrail.gov.in/> has one containing the chart from a mid-2024 train accident, an invitation to contribute a recording of the national anthem from 2021, and a link to parcel booking. Oh, and “NEW!” animated GIFs between the three items.
>Oh, and “NEW!” animated GIFs between the three items.
That's gotta be the second most popular web design quirk. Haha
> As for things like Flash or FTP, those were never part of the web platform. Nor were they ever anything like universal anyway.
Flash was the web technology.
The web technology… that didn’t come out of the box, wasn’t supported on all platforms, and didn’t integrate?
XSLT is to my knowledge the only client side technology that lets you include chunks of HTML without using JavaScript and without server-side technology.
XSLT lets you build completely static websites without having to use copy paste or a static website generator to handle the common stuff like menus.
> XSLT lets you build completely static websites without having to use copy paste or a static website generator to handle the common stuff like menus.
How many people ever do this?
Plain text, markup and Markdown to HTML with XSLT:
REPO: https://github.com/gregabbott/skip
DEMO: https://gregabbott.pages.dev/skip
(^ View Source: 2 lines of XML around a .md file)
I did that. You can write .rst, then transform it into XML with 'rst2xml' and then generate both HTML and PDF (using XSL-FO). (I myself also did a little literate programming this way: I added a special reStructuredText directive to mark code snippets, then extracted and joined them together into files.)
If this is "declarative XSL Processing Instructions", apparently 0.001% of global page loads.
One might think that as technology progresses more and more pieces of older technologies get revived and incorporated into the available tooling. Yet the very opposite thing happens: good and working parts are removed because the richest companies on Earth "cannot afford" to keep them.
In 19th century Russia there was a thinker, N. F. Fedorov, who wanted to revive all dead people. He saw it as the ultimate goal of humanity. (He worked in a library, a very telling occupation. He spent most of what he earned to support others.) We do not know how to revive dead people or if we can do that at all; but we certainly can revive old tech or just not let it die.
Of course, this job is not for everyone. We cannot count on the richest, apparently, they're too busy getting richer. This is a job for monks.
> One might think that as technology progresses more and more pieces of older technologies get revived and incorporated into the available tooling. Yet the very opposite thing happens: good and working parts are removed because the richest companies on Earth "cannot afford" to keep them.
I think it is because nobody, excepts a handful of people around the world, feels the need to use XSLT in lieu of CSS. Hence, CSS has evolved over time while XSLT has not.
This is how the world works: technology advances and old things become obsolete over time.
This proves that you do not understand the technology at hand.
XSLT isn't about styling documents, but is more like ETL (Extract, Transform, and Load)
I had the displeasure of working with XML.
And I know here on HN there are people that for whatever reason like it. I don't.
> good and working parts are removed
The browser vendors are arguing XSLT is neither good - it's adoption has always been lacking because of complexity and has now become a niche technology because better alternatives exist - nor working, see the mentioned security and maintenance issues. I think they have a good point there.
Well, one can argue that Metafont fonts are "niche". No font library supports them. But from what I know they could easily be technically superior to, say, Type 1 fonts. Of course a technology will be niche if it is treated as a poor relative. XSLT could be an alternative to CSS, for example. It is definitely more powerful than CSS, because it actually transforms the document, not just alters the appearance and sprinkles some automatic content here and there. And is actually used this way in XSL-FO, which, I think, powers a substantial share of technical publishing.
XSLT as an alternative to CSS sounds like a nightmare, though to be fair, I felt the same way about XSLT as an alternative to DSSSL, which to me felt more like a satirical response to the "XML everywhere" zeitgeist in the spirit of INTERCAL and eating babies than a serious design proposal.
Pertinent to your point, he wanted to resurrect ancestors so that they, too, could participate in the general resurrection. The analogy being old technology resurrected to work alongside contemporary technology towards a shared goal.
Moreover: there is no JS solution being so stable and for so long as that standard: "25 year old version of XSLT".
Can be "made with JS" doesn't mean that by chance it would be in any bit better than long proved and still used solution - not a one of many crippled, always changing, excluding imitations of it - for example like that one: https://news.ycombinator.com/item?id=45183624 (no caching, not instant, transparent or othogonal etc.).
With XSLT removed, Chrome can not claim to be a standard internet browser neither.
There is nothing wrong with XSLT - it's just Google not wanting to fix few bugs since decades - but others have to follow, nothing changes.
XSLT is great, but its core problem is that the tooling is awful. And a lot of this has to do with the primary author of the XSLT specification, keeping a proprietary (and expensive) library as the main library that implements the ungodly terse spec. Simpler standards and open tooling won out, not just because it was simpler, but because there wasn't someone chiefly in charge of the spec essentially making the tooling an enterprise sales funnel. A shame.
Was there ever a good reason for XSLT to be an XML document itself? It was painful writing it.
Yo dawg, I heard you like xml … so I made you an xml-based language to turn xml into other xml!
Once upon a time HTML was a kind of XML, which is why the current version is very similar to XML and hence painful to write. This in turn is why we tend to use programmatic tools to handle the HTML, and you should if you work with XML too.
In fact, HTML predates XML. Both can be seen as types of SGML.
This way you can manipulate XSLT using XSLT. A common case is to generate XSLT.
Clearly that would be possible, but I never actually saw anyone doing that though.
Any pointers to tech that did this, if it was a common case?
I doubt it was common. But, for example, there is such thing as Schematron: this is a special notation that checks that an XML document follows business rules and the final tool that it produces is a custom XSLT that transforms the document into the report.
(I'm also doing this currently; I need to prepare a sort of an annotated patch to an XML document, so I concocted a notation that describes edits and use it to generate both the documentation that highlights differences and also the patch itself; the patch comes out as XSLT.)
Is XSLT not an XML document itself?
I’m confused by your comment. My XSLT stylesheets are like this:
``` <?xml version="1.0"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> ```
Yes it is, I was asking why it needed to be. Sorry if that wasn't clear.
For what it's worth, this is the difference between private-sector and public-sector development. The public sector would have instead argued for some budget to hire developers to maintain libxslt and issue RFPs for grant money to rewrite it in Rust for memory safety guarantees. The private sector decides that it's just not a profitable use of resources and moves to cancel support.
The question isn't whether or not you use XSLT yourself, it's whether you use a different feature that could be deemed unprofitable and slammed on the chopping block. And therefore a question of whether it wouldn't be better for everyone for this work to be publicly funded instead.
I’m lost at “the public sector would have argued for some budget”. Xslt and libxslt are used across a no - trivial amount of deployments.
Why would the public sector feel bound to support it as opposed to pivot in the same direction the winds are blowing?
Outside the idiocy of this particular administration in the US, gov is pivoting toward more commercial norms (with compliance/etc for gov cloud and etc compliance).
> Why would the public sector feel bound to support it
The underlying axiom is the Pareto principle - that you get 80% of the benefit from the first 20% of the work, and getting the last 20% of the benefit takes up 80% of the work. The private sector will stop funding after the first 80% of benefit (it's not profitable to chase the last 20%) but the public sector is usually mandated to support everybody so it is indeed required to put in that extra effort.
Ah, shame. I always meant to expand on my little experiment here to ship 100% content pages to the client:
http://www.blogabond.com/xsl/vistacular.xml
The upside is that the entire html page is content. I defy google to not figure out what to index here:
view-source:http://www.blogabond.com/xsl/vistacular.xml
The downside is everything else about the experience. Hence my 15 years of not bothering to implement it in a usable way.
> I defy google to not figure out what to index here:
Easy: ignore due to no content-type header.
cute :) (focused and instant)
One extremely important use-case is for RSS/Atom feeds. Right now, clicking on a link to feed brings up a wall of XML (or worse, a download link). If the feed has an XSLT stylesheet, it can be presented in a way that a newcomer can understand and use.
This is why I've needed to use XLST, to style my personal RSS feed. Great guide for this: https://andrewstiefel.com/style-atom-xsl/ Looks like it's been raised on the whatwg issue too: https://github.com/whatwg/html/issues/11523#issuecomment-315...
extremely important? i use rss a lot and i have never seen anyone do this
This continues the saga discussed here: https://news.ycombinator.com/item?id=44952185
XSLT is wildly under-appreciated. You can take hierarchical data and bend it to your will, remix it, and turn it inside out if you wish. Those developers working with XML should consider XSLT before rolling their own manipulation script.
Now, do you need XSLT’s capabilities in the browser? Their stats say no one’s really using it.
I want browsers to be minimal and simple. For example, canvas should only provide a framebuffer to draw into, and all the rest can be done with WASM libraries. Web Audio should only provide an audio thread, and things like low-pass filters can be implemented in WASM. WebRTC should only provide UDP support, etc.
This would make creating competition easier and reduce attack surface. As a nice side effect, it would become impossible to use canvas or web audio for fingerprinting.
Dude… no.
Firstly, it puts a huge burden of non-value-adding work onto developers and the organisations they work for.
Secondly it would lead to even higher frequency and prevalence of people inventing their own half-arsed ways of doing things that used to be in the box. Nobody would think about standard usability affordances, accessibility, etc.
Thirdly, it would simply move the attack surface into an emergent library ecosystem without really solving anything.
Fourthly, it would increase website payloads even further. Developers have historically been awful at using bandwidth efficiently (still a concern in many scenarios due to connectivity limitations and costs), and we don’t need to offer more opportunities for them to demonstrate how terrible and undisciplined they are at it.
Fifthly, not everyone wants or needs (or should!) to learn web assembly in the same way that not everyone wants or needs to learn x86/64 assembly, ARM assembly, C or Rust.
Sixthly, it would lead to a huge amount of retooling and rewriting which, yes, to some extent would happen anyway because, apparently, we all love endless churn masquerading as progress, but it would be considerably worse.
The web would become significantly buggier and more unusable as a result of all of the above.
That sounds awful! For a start, accessibility would get even worse than it already is. The browser may become more “minimal” and “simple” from the point of view of the implementer, but certainly not the user.
On the off chance that by “canvas” you didn’t mean all rendering (which is a terrible idea for reasons addressed by others) but only what is currently covered by <canvas>—the frame buffer approach is incompatible with GPU acceleration, so 3D would basically not be possible. For better or for worse, WebGL is pretty close to the minimum acceptable for that kind of functionality.
I think it sounds good to have that "on top" of what's already there. So that those who want to can use a lower level abstraction.
I like the idea but you could take it a step further and have just a core virtual machine that you could attach virtual (input/output) devices to. So then the canvas and audio would just be virtual devices that met some specification. Or say for example, you just want to listen to an audio playlist, you could attach an audio device, a keyboard and a terminal device (for feedback). A canvas device wouldn't necessarily be required (if there was no use for one). And it would be up to the user to attach the devices required by an application, or at least the user would have direct control.
TLDR: QEMU but much simpler and only WASM need be supported.
Yes, but it also would be good to have some dumbed down version of HTML/DOM/CSS, so that the text can be copied and accessibility works.
During my college undergrad CS series we had a practicum with a real engineer from HP or somewhere. Our project was to help the world find and download printer drivers over the web. The project was to make a Java web service send XML that conformed to a schema, which would be turned into a webpage by a transform aka XSLT. It seemed convoluted at the time. The teacher showed us “the how” but I guess “the why” was left as an exercise for the reader. I never understood the big picture- at the time it seemed rather complex. But now I realize this probably would have scaled quite well on turn of the century hardware.
Gecko currently has much deeper integration of the XSLT engine with the browser internals: The XSLT engine operates on the browser DOM implementation. WebKit and Chromium integrate with libxslt in a way that's inherently bad for performance ( https://github.com/whatwg/html/issues/11578#issuecomment-321... )
Just Firefox XSLT is faster, better, cheaper than Google's (and JS), same, old Firefox extensions were to powerful Google could compete with Firefox (or block adblocks).
JS is very needed for ads, tracking and other strings attaching - and XSLT is not for that - but would make JS mostly obsolete in many cases.. [..]
Google pay Mozilla to criple Firefox. It's money from ads, to not let the web be free. Right now, how much $ and CPU power a JS engine could cost, for that, is irrelevant - except for the final user [paying for that saving on costs by some big company - or having to redo NOW in less efficient way something that still works well so far regardless of decades passed] !
https://news.ycombinator.com/item?id=44994459 - with answering lame questions of a developer not having a clue what is all about.
(Just.. live and let others live too ? Thx.)
Moreover.. Content First - and browser is a secondary thing to existing content (Chrome came after) - not the (double) opposite (primary, for ads n tracking instead)
- isn't Google as a public servant - so part of their job is to fix their bugs - but not in the position to decide to kill someone else existing content or solution - for not displaying ads so easy?
Makes sense, but I'll have to update my rss feed (which currently uses XSLT to display in browsers that don't have native RSS capabilities - i.e. basically all modern browsers)
In Europe some countries still use XML as the official data format and XSLT as the official code format.
It's used a lot in the publishing industry, which stores the content in JATS and other similar XML markup. It's also used by the US government for bills, etc.
Typically, these use XSLT on the backend to transform the content to HTML to be sent to the web browser.
And there's RSS which was mentioned in the previous discussions. Podcasts will typically have HTML renderings of that data, but if you opened the RSS in a web browser you could use XSLT to provide a user-friendly view of the content.
XSLT can also be used to provide fallback rendering for unsupported content, such as converting MathML to HTML for browsers without support. -- Chrome as of 109 supports MathML Core, but doesn't support the content markup (used for more semantic markup of common constructs like N-ary sum, integrals, etc.), so would still need something like XSLT to convert that markup to the presentation markup supported by Chrome.
Not just "still use", at least here in Germany our brand new e-invoicing system (mandatory since this year) is built on XML.
And XSL is used to validate invoice documents.
It's not only in Germany, it's an EU mandated thing to have e-invoicing to prevent fraud and whatever other things the bureaucrats in Brussels felt like it would be solved with technology.
And yes, sadly the powers that be decided that this crap needs to be XML. Because why not, why use a modern standard...
What about XML isn't modern? It's a far more capable format than JSON or anything else you can devise.
How about we agree to disagree? XML has no place in the modern world. It it wouldn't be for the likes of Microsoft, IBM, Oracle and a few others that keep using it and pushing it, it would have sailed into the sunset a long time ago.
JSON and XML are basically syntactic variant of the same data storage strategy [:tree of attributes and children]. [1]
Where XSLT shines, and JavaScript currently has no equivalent afaik, is in transforming a tree into another one, rule-based.
The lack of support of XSLT 2.0 in browsers is a major issue, as it includes many solutions to problems absolutely not covered by XSLT 1.0.
[1]: xml2dict/dict2xml is an implementation of exactly this duality.
> The lack of support of XSLT 2.0 in browsers is a major issue,
... for who?
People stuck with XSLT 1.0 [or worse, javascript] as your tree transformation engine
XSLT is amazing.
It really is. It's extremely handy albeit a bit niche these days.
Wasn't the social contract that get the market share that you can use Chrome to browse all the web already existing as well as by using the other browsers - means not discriminating (non-profit, government, older sites or those working well without JS for ads to be tracked), and not to kill parts of that web when convenient ?
I'm an XSLT fanboy. I've used it for all kinds of things, from generating docs to generating entire UIs from an XML declaration. But never in all my years have I used it in a browser. I didn't even know that was an option.
Part of the issue is that XSLT in the browser is stuck at version 1.0 so lacks a lot of the improvements added in 2.0 and later that make working with it a lot nicer.
It would be kind of nice if HTML had something where you can make a remote fetch request for JSON or XML data and get it formatted in some CSS-defined way, without Javascript.
Why not just expose an HTML representation of the data? Why must it remain JSON, XML, CSV, Parquet, fixed length or tab delimited files, ProtoBuf, etc?
API’s should provide content in the format asked of them. CSS should be used to style that content.
This is largely solved in RFC-6838 which is about “how media types, representation and the interoperability problem is solved”. https://datatracker.ietf.org/doc/rfc6838/
Already supported by .NET Web APIs, Django, Spring, Node, Laravel, RoR, etc.
Less mature ecosystems like Golang have solutions, they’re just very much patch-work/RYO.
Or even use OpenResty or njs in Nginx, which puts the transformation in the web service layer and not the web application layer. So your data might be JSON blob, it’ll convert to HTML in real-time. Something similar can be achieved elsewhere like Apache using mod_lua etc.
I think bastardising one format (HTML), to support another format (JSON), is probably not the right move. We’ve already done that with stuff like media queries which have been abused for fingerprinting, or “has” CSS selectors for shitty layout hacks by devs who refuse to fix the underlying structure.
Rather than adding an HTML endpoint in addition to the XML or JSON, expose the data and link it to stylesheets that dynamically render the HTML client side.
That's the whole point of XSLT, ship the data and tell the browser how to transform it to HTML.
Because so you can separate the data from the layout. You can e.g. return a list of strings and then the strings become the summaries of a set of details elements.
The description you give inherently changes the structure of the data, and JavaScript would be the best way to post-process it. CSS is about styling the structure of HTML, not structural changes to it.
Unless you have a good example, I think you’re coming at this from an “everything’s a nail if the only tool I have is a hammer”.
They are only getting rid of xslt. You can still use <?xml-stylesheet with CSS
CSS based views of XML are somewhat useful, but are limited in what they can do. Especially things like setting the HTML title, generating a table of contents, or transforming data like dates and times.
Sure, but the parent literally was asking for xml styled with css.
In practice this means XSLT execution will be moved from clients to servers and I'm not so sure this is positive with regards to security.
So, instead of a giant corporation with all the resources in the world stepping in and maintaining a core web library, they're deciding to remove a feature because the lone maintainer who has been doing a thankless job for years has decided to unsurprisingly step down from this role.
I suppose we can expect support for XML to be dropped soon as well, since libxml2 maintenance is ending this year.
I don't buy the excuse of low number of users. Google's AMP has abysmal usage numbers, yet they're still maintaining that garbage.
Google has been a net negative for the web, and is directly responsible for the shit show it is today. An entirely expected outcome considering it is steered by corporate interests.
Probably more due to the fact that browsers only support the 1999 XSLT 1.0, and no one has shown any interest in implementing XSLT 2.0 from 2001, or XSLT 3.0 from 2017. So there has been a sign of lack of desire since 2001 at minimum, likewise there is seemingly no attempt by anyone to document incompatibilities and push browsers to unify their incompatibilities like HTML, JS, and CSS.
The writing has been on the wall for a long while. Mozilla hasn't stepped up, Google hasn't stepped up, GNOME hasn't stepped up, Oracle hasn't stepped up, etc. Maybe its just a format that once anyone gets involved with, they no longer want to be involved with it any further.
I would expect governments finally taking over.
I believe they didn’t just because most of politicians don’t know anything about software.
Being aware of the problems that “governmatization” of open source can bring it still is something I expect to be picked up by countries.
People are free to make their own browser if they want.
Part of the reason google chrome won the browser wars is because they are willing to make decisions like this. Kitchen sink software is bad software.
The whole point of browser standards is to avoid every browser picking and choosing features their own features, its a terrible end user experience.
No one should fork chrome and maintain it with XSLT still baked in. Not only would it go unused, it doesn't help anyone wanting to ship XSLT on a site because users would literally have to install a different browser just to see that page.
A kitchen sink software implies an image of a kitchen sink filled with dirty dishes. But the solution is not to throw them all away and leave a single dish, still dirty, but at least looking manageable. The solution is to wash all dishes and put them neatly on the rack.
Really, because mozilla seamonkey tried that. How do you think that went for them?
> People are free to make their own browser if they want.
Some peple are doing that[1]. It's not a matter of desire, but of the amount of effort and resources required to build and maintain the insanity of the modern web stack.
> Part of the reason google chrome won the browser wars is because they are willing to make decisions like this.
Eh, no. Google Chrome won because it is backed by one of the largest adtech corporations with enough resources and influence to make it happen. They're better at this than Microsoft was with IE, but that's not saying much. When it launched it introduced some interesting and novel features, but it's now nothing but a marketing funnel for Google's services.
[1]: https://ladybird.org/
> Some peple are doing that[1]. It's not a matter of desire, but of the amount of effort and resources required to build and maintain the insanity of the modern web stack.
People say that, but i don't think that's true. The web stack was always insane, the only difference is its documented now. I think now is a much easier time to build a web browser than the past was.
Not to mention the irony of complaining the web stack is insane while insisting a really difficult to support feature that never saw much use should be kept forever because reasons.
> Eh, no. Google Chrome won because it is backed by one of the largest adtech corporations with enough resources and influence to make it happen
Google won because nobody else really tried.
Firefox has been a dumpster fire of bad management decisions and has reduced itself to basically just copying google's every decision sacraficing any unique identity of its own.
Safari is never going win when it is mac only and apple doesnt seem to fund it very hard.
Most of the rest are just chrome reskins that dont deserve to be called a separate browser.
Maybe something interesting might come out of ladybird. Its still quite early to tell.
> Google won because nobody else really tried.
Google won because it:
- built on a very solid foundation from the start (it started out as a webkit fork), and was generally a good fast browser. This is the very minor part
- Sabotaged Firefox: https://archive.is/tgIH9
- Heavily promoted and advertised Chrome across all of its properties which included such insignificantly small sites like Google Search and Youtube.
Will Ladybird support web standards or just take lead from Google though. Will Ladybird support XSLT?
> Kitchen sink software is bad software.
Ah yes. That's why Chrome bravely refuses to be a kitchen sink. It only has a small set of available APIs like USB, MIDI, Serial, Sensors (Ambient Light, Gyroscopes etc.), HID, Bluetooth, Barcode detection, Battery Status, Device Memory, Credential Management, three different file APIs, Gamepads, three different background sync APIs, NFC...
And it still doesn't support alternate stylesheets, maybe due to NIH syndrome.
Just leave it alone bro.
They're keeping XPath but removing XSLT. What a joke. All these brilliant Google engineers and all this brilliant AI tooling and no one can fix XSLT.
Google pays people to destroy the open web, not improve it. These Google engineers are pathetic and should be ashamed of their inept laziness.
How about that:
Google's unilaterally tries to kill part of the web that not let them track or profit from ads so easy ?
.. and with all that money they get (and brains), still to lazy to fix few old bugs (stuck at old version).
Good riddance. The web needs to shed all the old baggages like this to move forward. Looking forward to MCP becoming part of the browser.
Wow, I couldn't disagree more.
XSLT is no more "baggage" than HTML itself. Removing it in no way "moves the web forward". And integrating technologies part of the current hype cycle, which very well may disappear in a year, is a terrible idea.