Spotted lanternflies love grapevines that's bad for Pennsylvania's wine industry (theconversation.com)

I read the title and said "shut the fuck up, don't do that." but then I read the rationale and it's fair. It's true there is no layout engine inside canvas, and that is a pain, but I'm not sure it's such a pain as to invite this recursive hell.

nine_k · 40m ago

One of the more senior engineers I worked with told me: "Every real-life data structure I encountered was tree-like".

It would be easiest to just ask the browser to render a fragment of HTML onto a canvas, or onto some invisible bitmap, like you can with most other UI toolkits.

mook · 23m ago

Yeah, that's already available in Firefox for chrome/extensions, but not allowed for the web due to fingerprinting and other security risks. For example, rendering an iframe of your bank account…

https://searchfox.org/mozilla-central/rev/f691af5143ebd97034...

monster_truck · 37m ago

They would never do this because of fingerprinting, which is already the cause of most of the reasons we cannot 'just' do a lot of things, unfortunately.

E: And the infamous other half: malware. A bit over a decade ago malware devs started using canvas to do things like hide fragments inside of bitmap data in seemingly harmless ads and then a second script would extract and assemble it to evade detection.

teaearlgraycold · 41m ago

You could disallow recursion.

charcircuit · 1m ago

This is really useful for being able to use standard web technology with webxr.

codelikeawolf · 1h ago

I immediately got "Pimp My Ride" vibes. Yo dawg, I heard you like HTML so I put HTML inside the canvas inside the HTML.

ttoinou · 1h ago

Soon we’re gonna need Canvas rendering inside of HTML-in-Canvas

bastawhiz · 39m ago

It should already work if the nested canvas uses the same approach. It's not cyclic, though. To make cyclic canvases work, you need to manually draw the parent canvas to a nested canvas.

mmastrac · 1h ago

https://github.com/WICG/html-in-canvas/blob/main/security-pr...

> TODO: Expand on fingerprinting risks

hyperhello · 1h ago

I see reliable rich text editing as more of a priority.

turnsout · 11m ago

Sad to say, but the first thing I thought was "oh good, a new fingerprinting target."

tantalor · 1h ago

https://html2canvas.hertzen.com/

Waterluvian · 1h ago

45kb gzipped is pretty beefy but incredibly small when you consider just what it takes to make this work today. If I understand correctly, it’s basically a DOM and CSS renderer.

kizer · 1h ago

There's a bunch of CSS, etc. not supported by that. It would be great to have access to a native API to get bitmaps of the DOM.

masswerk · 1h ago

Well, a fingerprinting dream…

Meaning, no way, just for the security aspect.

deadbabe · 14m ago

true horror is finding every element of the HTML page your on has been rendered in a Canvas

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HTML-in-Canvas

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