Error in base64 encoded SVG image

Hello,
I want to use a base64 encoded SVG image as the brand image in the Safelayout Cute Preloader.
To do this, I first encoded the SVG image to base64 and then added “data:image/svg;base64,” to the beginning of it, like this:

data:image/svg;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIGhlaWdodD0iMTUiIHdpZHRoPSI0NSIgdmlld2JveD0iMCAwIDQ1IDE1Ij4NCiAgPHJlY3QgeT0iMCIgaGVpZ2h0PSIxNSIgd2lkdGg9IjQ1IiBzdHJva2U9IiMxNzkiIHJ4PSIxIiBmaWxsPSIjMmFjIi8+DQogIDx0ZXh0IHg9IjQiIHk9IjEyIiBmb250LWZhbWlseT0iY291cmllciIgc3Ryb2tlPSJ3aGl0ZSIgZm9udC1zaXplPSIxNiI+VGVzdDwvdGV4dD4NCjwvc3ZnPg0K

But I got an Image loading error!

 

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