Is it possible to use css variables in a svg background-image?

Question

CSS variables don't work when used in an SVG background-image:

.icon-24 {
  width: 24px;
  height: 24px;
  display: inline-block;
  vertical-align: middle;
  background-repeat: no-repeat;
  background-color: silver;
}

.icon-24-stroke {
  --color-test: red;
  background-image: url("data:image/svg+xml;charset=utf-8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' fill='none' stroke='var(--color-test)' stroke-linecap='round' stroke-linejoin='round' stroke-miterlimit='10' stroke-width='1px'> <circle cx='12' cy='12' r='8' /> </svg>");
}

.icon-24-fill {
  --color-test: red;
  background-image: url("data:image/svg+xml;charset=utf-8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' fill='var(--color-test)'><circle cx='12' cy='12' r='8' /></svg>");
}

<p>The circle stroke should be red:</p>
<i class="icon-24 icon-24-stroke"></i>
<p>The circle fill should be red:</p>
<i class="icon-24 icon-24-fill"></i>

Is there a way to make this work?

Answer 1

Like @BoltClock said in the comments, it's not possible to use css variables in urls.