can't get ip list

[oxful]

Describe the bug i can't get the ip list by web server. err log: TypeError: Object of type 'datetime' is not JSON serializable

File "**\lib\site-packages\scylla\web\server.py", line 107, in api_v1_proxies

To Reproduce Steps to reproduce the behavior:

1. start scylla
2. open http://localhost:8899/#/
3. click Proxy IP List

Expected behavior A clear and concise description of what you expected to happen.

Screenshots If applicable, add screenshots to help explain your problem.

Smartphone (please complete the following information):

• Device: pc
• OS: windows 10
• Browser chrome

[hongweipeng]

+1