Most vector-effect properties are at-risk

[puchm]

What type of issue is this?

Incorrect support data (ex. Chrome says "86" but support was added in "40")

What information was incorrect, unhelpful, or incomplete?

All values for this property except non-scaling-stroke are considered as "at-risk", meaning they are not being developed by browser makers. See this document and search for the term "at risk": https://svgwg.org/svg2-draft/coords.html#issue31

I was able to verify this on Chrome 110.0.5481.177 but I believe there are a lot of browsers and versions that don't support the full property.

Caniuse mentions it with a small note: https://caniuse.com/vector-effect

What browsers does this problem apply to, if applicable?

No response

What did you expect to see?

As I already mentioned I think there are a lot of different browsers with different versions where this is a problem. W3C calls it a "lack of implementations". I would expect the compatibility table to either be adjusted completely to reflect reality properly or to have a disclaimer somewhere, e.g.:

Values other than non-scaling-stroke for the vector-effect attribute/property are currently at risk of being removed from the specification as they are not being developed by browser vendors.

(Adjusted from the note on Caniuse)

Did you test this? If so, how?

As mentioned, in Chrome 110.0.5481.177 by having a <text> element with vector-effect="non-scaling-size" inside a <g>, the size of which I changed using the transform property. I also had a rect in there to make sure my transforms were working. Both the rectangle and the text changed sizes but I was only expecting one of them to do so.

When I changed it to non-scaling-stroke (which is the only value that is broadly supported) it worked. The text still changed it's size but the stroke always remained the same thickness (e.g. very large text, but still 1px of stroke).

Can you link to any release notes, bugs, pull requests, or MDN pages related to this?

https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/vector-effect
https://svgwg.org/svg2-draft/coords.html#issue31

Do you have anything more you want to share?

No response

MDN URL

https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/vector-effect

MDN metadata

MDN page report details

• Query: svg.attributes.presentation.vector-effect
• Report started: 2023-03-08T22:37:25.819Z

[caugner]

BCD does not have any data for values of vector-effect, and we don't record support data for a (sub-)feature until it is implemented in at least one browser.

What would be better in this case is to update the content and mark the values "at risk" accordingly, so I will transfer this issue to the content repo.