Got 403 Forbidden while trying to download open-iconic from visual studio 2017 with libman

[Dusthorn]

In Visual Studio 2017 Community Edition I wanted to add open-iconic to my website application via libman. On package restoring I got this error:
Failed to download resource from “https://cdnjs.cloudflare.com/ajax/libs/open-iconic/1.1.1/webp/account-login-2x.webp”

Here is my libman.json

{
"version": "1.0",
"defaultProvider": "cdnjs",
"libraries": [
{
"library": "jquery@3.3.1",
"files": [
"jquery.min.js",
"jquery.js",
"jquery.min.map"
],
"destination": "wwwroot/lib/jquery/"
},
{
"provider": "unpkg",
"library": "bootstrap@4.1.3",
"destination": "wwwroot/lib/bootstrap/"
},
{
"library": "popper.js@1.14.4",
"destination": "wwwroot/lib/popper.js/"
},
{
"library": "open-iconic@1.1.1",
"destination": "wwwwroot/lib/open-iconic/"
}
]
}

[MattIPv4]

Hi there, I have added this file extension request to #13145 where I am keeping track of them all.