svg.attributes.presentation.vector-effect - only support for non-scaling-stroke

What type of issue is this?

Missing compatibility data

What information was incorrect, unhelpful, or incomplete?

The svg attribute vector-effect is only supported with non-scaling-stroke value.

Other values for the vector-effect attribute are not supported by browser vendors.

What browsers does this problem apply to, if applicable?

Chromium (Chrome, Edge 79+, Opera, Samsung Internet), Firefox, Safari

What did you expect to see?

A complete support description

Did you test this? If so, how?

<svg viewBox="0 0 500 240">
  <!-- normal -->
  <path
    d="M10,20 L40,100 L39,200 z"
    stroke="black"
    stroke-width="2px"
    fill="none"></path>

  <!-- scaled -->
  <path
    transform="translate(100,0) scale(4,1)"
    d="M10,20 L40,100 L39,200 z"
    stroke="black"
    stroke-width="2px"
    fill="none"></path>

  <!-- fixed-->
  <path
    vector-effect="non-scaling-size"
    transform="translate(300, 0) scale(4, 1)"
    d="M10,20 L40,100 L39,200 z"
    stroke="black"
    stroke-width="2px"
    fill="none"></path>
</svg>

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

https://bugzilla.mozilla.org/show_bug.cgi?id=1318208

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

Start with the svg.attributes.presentation.vector-effect query and the MDN vector-effect page, then review the linked Mozilla bug and the reported SVG example. Update the compatibility description so support for non-scaling-stroke is represented accurately and unsupported values are distinguished; the issue is done when the MDN support data is complete.