content: Probably. SVG images are kinda like JavaScript, in that they're executable code; your browser renders the image from said code. You also need a browser capable of rendering SVG images, which not all of them fully support. Make sure you have the latest version of whatever browser you're using? Pretty sure Microsoft Edge is garbage at rendering them, and so is PaleMoon/older versions of FF/Chrome. I'm on Waterfox and it loads just fine.