通过 SSL 发布 UTF-8 时，HEROKU 上出现“EOFError：已到达文件结尾”

我在 heroku 上遇到了奇怪的错误。为了重现它，我必须使用请求正文中的任何 UTF-8 字符制作大的（超过几 KB）HTTPS POST。这是一个例子：

require "net/https"
require "uri"

#Accutally I've ecountered this bug while posting to another server
url = URI.parse("https://api.heroku.com/myapps")

#It's Ukrainian 'oiced velar plosive G' letter
payload = "ґ"*10000
request = Net::HTTP::Post.new(url.path)
request.body = payload
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
http.read_timeout = 500
http.start {|http| http.request request }

在本地计算机的 irb 上运行这样的脚本给我：

#<Net::HTTPUnauthorized 401 Unauthorized readbody=true> 

...这是预期的，但是在 Heroku cedar 上，在“heroku 控制台”上运行它...大约 60 秒我得到：

EOFError: end of file reached
    from /usr/local/lib/ruby/1.9.1/openssl/buffering.rb:145:in `sysread_nonblock'
    from /usr/local/lib/ruby/1.9.1/openssl/buffering.rb:145:in `read_nonblock'
    from /usr/local/lib/ruby/1.9.1/net/protocol.rb:135:in `rbuf_fill'
    from /usr/local/lib/ruby/1.9.1/net/protocol.rb:116:in `readuntil'
    from /usr/local/lib/ruby/1.9.1/net/protocol.rb:126:in `readline'
    from /usr/local/lib/ruby/1.9.1/net/http.rb:2219:in `read_status_line'
    from /usr/local/lib/ruby/1.9.1/net/http.rb:2208:in `read_new'
    from /usr/local/lib/ruby/1.9.1/net/http.rb:1191:in `transport_request'
    from /usr/local/lib/ruby/1.9.1/net/http.rb:1177:in `request'
    from (irb):32:in `block in irb_binding'
    from /usr/local/lib/ruby/1.9.1/net/http.rb:627:in `start'
    from (irb):32
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.7/lib/rails/commands/console.rb:47:in `start'
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.7/lib/rails/commands/console.rb:8:in `start'
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.7/lib/rails/commands.rb:41:in `<top (required)>'

我应该用它做什么？

我必须将 ruby​​ 版本添加到Gemfile，默认 Cedar 的 ruby​​ 是 1.9.2（在通过 SSL 传递 UTF-8 字符串时存在错误）

source 'https://rubygems.org'
ruby "1.9.3"

gem 'rails', '3.2.7'
gem 'pg'
...