Comment 17 for bug 1567697

It appears that this issue has been quietly resolved now:

  user@localhost:~$ dpkg -l libcurl4 curl|grep ii
  ii curl 7.61.0-1ubuntu2.3 amd64 command line tool for transferring data with URL syntax
  ii libcurl4:amd64 7.61.0-1ubuntu2.3 amd64 easy-to-use client-side URL transfer library (OpenSSL flavour)

  user@localhost:~$ curl -I --http2 https://http2.akamai.com/demo|tee
    % Total % Received % Xferd Average Speed Time Time Time Current
                                   Dload Upload Total Spent Left Speed
    0 2421 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
  HTTP/2 200
  server: Apache
  etag: "07ce30bc53aa7834dff55f92a6d05a56:1466062139"
  last-modified: Thu, 16 Jun 2016 07:28:59 GMT
  content-length: 2421
  content-type: text/html
  rtt: 14
  myproto: h2
  protocol_negotiation: h2
  expires: Fri, 12 Apr 2019 09:27:25 GMT
  date: Fri, 12 Apr 2019 09:27:25 GMT
  cache-control: max-age=0, no-cache, no-store
  pragma: no-cache
  ...

Thank you, to whoever made it happen! :)