CaseClauseError still causes headaches, since the error tells nothing that there's a problem with the URL

[apohllo]

Definitely returning:

** (CaseClauseError) no case clause matching: []
    (hackney 1.20.1) /home/apohllo/src/projekty/exaile/epo/deps/hackney/src/hackney_url.erl:248: :hackney_url.parse_netloc/2
    (hackney 1.20.1) /home/apohllo/src/projekty/exaile/epo/deps/hackney/src/hackney.erl:351: :hackney.request/5
    (httpoison 1.8.2) lib/httpoison/base.ex:846: HTTPoison.Base.request/6
    iex:33: (file)

for a call:

HTTPoison.get("/en/abc")

is totally unexpected. I spend two days debugging my own code, inspecting all clauses to finally find out that I was passing a relative URL.

Please send a descriptive error, not a cryptic clause matching message.

This was already reported, but the problem still exists so I am opening a new issue.