Can't get response content for some urls

[killernova]

When I request url like this one: r = HTTP.get('https://international.la-croix.com'), it returns the code of 200: r.code => 200, but when I want to print the response body, it just returns blank string: r.to_s => "".

This problem only appears in some urls, and most of them works fine.

[ixti]

It's known issue with parser used in released versions:

• Upgrade header which advertises protocol support being treated as an actual upgrading #422

You can switch to 5.0.0.pre version which has required fix applied.