In reply to Tatiana.Pshenichnikov.

Thank you, Tatiana, for your feedback. I too wish Internet Explorer 11 has this capability, but for some reason, Microsoft has somewhat limited support for the data protocol. See these references to Microsoft documentation:
https://msdn.microsoft.com/en-us/library/aa767739(v=vs.85).aspx
https://msdn.microsoft.com/en-us/library/jj710206(v=vs.85).aspx
https://msdn.microsoft.com/en-us/library/cc848897(v=vs.85).aspx
It's rather vague and it's been mostly used for embedding images in HTML.