Is the property stroke-dashoffset supported? It does not seem to be working in the following example.

<svg class="svg" width="200" height="200" viewPort="0 0 100 100" version="1.1" xmlns="http://www.w3.org/2000/svg">
<circle r="90" cx="100" cy="100" fill="transparent" stroke-dasharray="565.48" stroke-dashoffset="400" stroke="#33aaa3"></circle>
</svg>