API to setAvatar is making a request to the avatar URL and freezes on invalid ones

[rafaelks]

Description:

curl -w "\n\n%{time_total}\n" -H "X-Auth-Token: (private)" -H "X-User-Id: (private)" -H "Content-Type: application/json" -d '{"avatarUrl": "https://portal.drugovich.com.br/files/funcionarios/avatar/avatar_12611.jpg"}' https://open.rocket.chat/api/v1/users.setAvatar -i
HTTP/2 502 
content-type: text/plain; charset=utf-8
content-length: 11
date: Fri, 30 Nov 2018 12:11:58 GMT

Bad Gateway

Seconds: 120.629467