Re: [svgwg] Should `width` and `height` apply to nested `svg` elements as CSS properties (#1057)

From the Chromium bug.

## [issue 449095628](https://issues.chromium.org/issues/449095628). 
https://replayweb.page/

```
<svg style="width:9.5rem;height:1.25rem;">
  <g>
    <!--?lit$424463147$-->
    <svg xmlns="http://www.w3.org/2000/svg"
         xml:space="preserve"
         style="fill-rule:evenodd;clip-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2"
         viewBox="0 0 189 24">
      <clipPath id="a">
        <path d="M0-.001h188.88v23.04H0z"></path>
      </clipPath>
      <g clip-path="url(#a)">
        <path d="M32.997 … .909.15"
              style="fill:#14122d"></path>
        <path d="M6.544 … 57 3.717"
              style="fill:#0891b2"></path>
        <path d="M22.833 …1-.002z"
              style="fill:#4d7c0f"></path>
      </g>
    </svg>

  </g>
</svg>
```

They fixed it in https://github.com/webrecorder/replayweb.page/pull/458


## [issue 449226918](https://issues.chromium.org/issues/449226918)
https://www.unifyr.com/

````
<svg xmlns="http://www.w3.org/2000/svg" width="200" height="500" viewBox="0 0 200 500" fill="none">
 <rect x="0" y="0" width="200" height="200" fill="lime" />
 <text x="0" y="50" font-size="50" fill="green">Expected</text>
 <svg x="0" y="0" width="200" height="200" style="height: auto" viewBox="0 0 300 300">
  <rect x="0" y="0" width="300" height="300" stroke="red" stroke-width="10" />
  <text x="0" y="75" font-size="75" stroke="darkred" stroke-width="2">Actual</text>
 </svg>
</svg>
```

They fixed it with 
> I worked around it by changing the svg selector to `svg:not(:where(svg svg))`.


## Another regression 
https://issues.chromium.org/issues/449170647#comment7

And more in the issue. Some quite dramatic. 

## Chrome reverted

**OK this was reverted in Chrome 143.0.7457.0**

> I've verified the revert works in Chrome Canary 143.0.7457.0, and have submitted a change that will roll back this change in all Chrome channels over the next 24hrs.


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Received on Wednesday, 4 February 2026 07:32:26 UTC