Unsupported browser warning

[tigt]

IE and Edge don't support SVG <filter> references on HTML. Edge at least supports <foreignObject>, so that might work.

Safari allegedly works, but it produces terrifying visual artifacts instead. For now, the only engines that display a useful result are Gecko and Blink.

I wonder if I can replicate this using CSS filter shorthand? That might solve a handful of issues: Edge, Safari bugs, and lack of hardware-acceleration on Blink.