Base64 image upoload

I’m trying to upload jpg image encoded into base64 in accordance to this:
Base64-encoded image looks like this:
If i’ve got it correctly, i should send in request body this code without data type:
I’ve also tried this:
Both of this codes are successfully uploaded to the server, but both of them are broken and don’t appear as images.
request url:"

Hi Anton!

Please try my request for saving image encoded with base64
It works as expected.
Please try it.