xcollector installer unable to verify time offset on fedora

[rshivane]

XC_ACCESS_TOKEN="test" bash -c "$(curl -Ls  https://git.io/get-xcollector)"

Verifying time offset
Couldn't connect to server to check time difference.
Please verify that the local server time is accurate manually.
Starting XCollector

Possible the headers are in lower case

[root@fedora27-docker0 ~]# curl -s --head https://www.google.com/humans.txt
HTTP/2 200 
accept-ranges: bytes
vary: Accept-Encoding
content-type: text/plain
content-length: 286
date: Wed, 14 Mar 2018 12:55:46 GMT
expires: Wed, 14 Mar 2018 12:55:46 GMT
cache-control: private, max-age=0
last-modified: Thu, 08 Dec 2016 01:00:57 GMT
x-content-type-options: nosniff
server: sffe
x-xss-protection: 1; mode=block
alt-svc: hq=":443"; ma=2592000; quic=51303431; quic=51303339; quic=51303335,quic=":443"; ma=2592000; v="41,39,35"