Please make it possible for web developers to detect SVG blocking without JavaScript!
Currently svg.disable = true causes browser to silently ignore svg but keep it in DOM tree. Which makes it impossible to fallback or monkey patch this without JS. The only workaround I found is overlaying rasterized icon with svg but this doesn't work with translucent icons page still has to serve both raster and vector graphics.
I assume adding a CSS selector or a special html tag is way out of scope for this suggestions forum but maybe allow developers to specify a fallback tag on svg element that renders the raster version of vector
Firefox
