Images are broken

[rocky]

In converting to new MathJax images became broken.

For example:

Import["ExampleData/lena.tif"]

@TiagoCavalcanteTrindade is this of interest to you?

[TiagoCavalcante]

@rocky I saw that in mathicsscript the image MathML form looks right except by the b in the begin of src

<math display="block"><mglyph src="b'data:image/png;base64,

And the image source is HUGE.

In Mathics Django the image is received, then, because of a bug that I don't know where is, it is sent back, the URI is too long, what breaks the server, and then I need to restart it to go back working.