How do I Load Image via Base64 string?

There's another thread like this but it's about a year old an the answer wasn't exactly clear.

How would I go about loading an image via Base64 string from a variable or server side?

Using the "Load image from URL" and inputting the Base64 string does not work. Is there a formatting issue i'm missing or maybe a step I may have overlooked?

Thanks for any assistance.