I recently browsed on the internet that there is a textArea local to SVG (I might need this for text-wrapping purpose)
I used the example and tested it on Chrome inside
Check if the UA supports the http://www.w3.org/Graphics/SVG/feature/1.2/#TextFlow feature string and display an SVG textArea if it does, otherwise display an html textarea inside a foreignObject e.g.
<switch>
<g requiredFeatures="http://www.w3.org/Graphics/SVG/feature/1.2/#TextFlow">
<textArea width="200" height="300">whatever</textArea>
</g>
<foreignObject width="200" height="300">
<textArea xmlns="http://www.w3.org/1999/xhtml" style="width: 200px;height: 300px">otherwise</textArea>
</foreignObject>
</switch>