Would it be possible to add the "width" and "height" attribute to the icons?

[marco-cam]

When not using the css styling file Firefox and other browsers set to 0 by default missing width and height attributes in the SVG images.
Doing so (following strictly the W3C specs) the images would not render.

That's the case when the icons are used as images together with a canvas.

Can it be possible to set a default width and height attributes to the icons?