In class Foxinsocks using http protocol can be insecure

[vineela1999]

Issue/Feature Description:
In delfin/tests/unit/api/extensions/foxinsocks.py

class Foxinsocks(extensions.ExtensionDescriptor):
    """The Fox In Socks Extension."""

    name = "Fox In Socks"
    alias = "FOXNSOX"
    namespace = "http://www.fox.in.socks/api/ext/pie/v1.0"
    updated = "2011-01-22T13:25:27-06:00"

Here http can be insecure

Why this issue to fixed / feature is needed(give scenarios or use cases):
In the class Foxinsocks , used http which might be insecure can use https instead.
How to reproduce, in case of a bug:

Other Notes / Environment Information: (Please give the env information, log link or any useful information for this issue)