SVG icons – the admin part just shows rows of empty boxes

Hey There-

I’m trying to insert an SVG icon into one of my pages and the admin part just shows rows of empty boxes. I just linked to an image of the screen shot here:

https://rebeccaporetsky.com/wp-content/uploads/2015/04/Screen-Shot-2015-04-14-at-4.38.32-PM.png

Please advise.