Add note about PaintWorklet privacy leak

[sideshowbarker]

Fixes #6257

[sideshowbarker]

@Kaiido — If you can confirm whether Firefox and/or Safari do the same thing here, we can update the patch to mention them along with Chrome.

[github-actions]

Preview URLs

• https://pr6259.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/PaintWorklet

Flaws

None! 🎉

External URLs

URL: /en-US/docs/Web/API/PaintWorklet
Title: PaintWorklet
on GitHub

• https://drafts.css-houdini.org/css-paint-api/ (1 time) (Note! This may be a new URL 👀)
• [css-paint-api] CSS Paint API leaks browsing history w3c/css-houdini-drafts#791 (1 time) (Note! This may be a new URL 👀)

(this comment was updated 2021-06-23 13:26:10.212918)

[Kaiido]

@Kaiido — If you can confirm whether Firefox and/or Safari do the same thing here, we can update the patch to mention them along with Chrome.

I believe only Chromium based browsers expose this API currently, so others UAs behavior is undefined here.

[sideshowbarker]

I believe only Chromium based browsers expose this API currently

ah yes — thanks, yeah, I see that’s what the https://developer.mozilla.org/en-US/docs/Web/API/PaintWorklet#browser_compatibility table shows

[Elchi3]

Do we want to put this in a section with the heading "Privacy concerns"? Other MDN pages use "Accessibility concerns" or "Performance concerns" for similar remarks.

[sideshowbarker]

Do we want to put this in a section with the heading "Privacy concerns"? Other MDN pages use "Accessibility concerns" or "Performance concerns" for similar remarks.

Good point — yep, added

[Elchi3]

Nice, well done! 👍