Issue with tagName case-sensitivity when creating SVG content.

I am using jsdom in paper.js to export SVG content. In order to export gradients, I am using the following command to create a SVG linearGradient node:

document.createElementNS('http://www.w3.org/2000/svg', 'linearGradient')

This results in a tag <lineargradient> in the output, so with a lowercased tagName, which is then not recognized by SVG parsers.

I assume this is a bug in jsdom?

[purple-force]

A little different. When i set the attribute of svg by setAttribute(‘viewBox’, ‘0 0 1024 1024’), the output is viewbox,it is lowercase and not recoginzed by browers. My jsdom is v14.1.0@Domenic Denicola

[lehni]

This doesn’t seem to be fully fixed unfortunately. The following still produces lowercased tag names:

var node = document.createElementNS('http://www.w3.org/2000/svg', 'textPath');
var str = jsdom.serializeDocument(node);
console.log(str);

<textpath></textpath>