我这里 https://use.fontawesome.com/releases/v5.0.13/css/all.css 访问超时. 但是奇怪的是使用 http 协议是没问题的 http://use.fontawesome.com/releases/v5.0.13/css/all.css. curl 的结果是这样的:
$ curl -v https://use.fontawesome.com/releases/v5.0.13/css/all.css
* Trying 23.111.9.35...
* TCP_NODELAY set
* Connected to use.fontawesome.com (23.111.9.35) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
* CAfile: /etc/ssl/certs/ca-certificates.crt
CApath: /etc/ssl/certs
* (304) (OUT), TLS handshake, Client hello (1):
* OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to use.fontawesome.com:443
* stopped the pause stream!
* Closing connection 0
curl: (35) OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to use.fontawesome.com:443