此代码不能在Firefox 38.0.1(内容编码错误)和Google Chrome 42.0.2311.152 (err_content_decooding_failed)中工作，但它可以在Opera 12.16和cURL(带——compressed选项)中工作:
#!/usr/bin/ruby
require "cgi"
require "zlib"
cgi=CGI.new(:accept_charset => "UTF-8")
#header
puts "Content-Type: text/html; charset="UTF-8""
puts "Content-Encoding: gzip"
puts
#generating some html output
output=""
output << "<html><body><style> p {line-height:20%;font-size:9px;font-family:monospace} a {text-decoration:none} a[title]:hover:after {font-size:9px;font-family:monospace}</style>"
output << "<p style='text-align:center'>#{Time.now}</p>"
output << "<p>#{"-"*190}</p>"
output<<"</body></html>"
z = Zlib::Deflate.new(9)
compressed = z.deflate(output,Zlib::FINISH)
z.close
puts compressed
此代码适用于所有浏览器，包括cURL:
#!/usr/bin/ruby
require "cgi"
require "zlib"
cgi=CGI.new(:accept_charset => "UTF-8")
puts "Content-Type: text/html; charset="UTF-8""
puts "Content-Encoding: gzip"
puts
output=""
output << "<html><body><style> p {line-height:20%;font-size:9px;font-family:monospace} a {text-decoration:none} a[title]:hover:after {font-size:9px;font-family:monospace}</style>"
output << "<p style='text-align:center'>#{Time.now}</p>"
output << "<p>#{"-"*190}</p>"
output<<"</body></html>"
File.write("gzip.temp",output)
compressed=IO.popen("cat gzip.temp|gzip -c","r").read
puts compressed
好的，问题解决了，我们必须使用这个代码段:
z = Zlib::Deflate.new(9,16+Zlib::MAX_WBITS)
compressed = z.deflate(output,Zlib::FINISH)
z.close
puts compressed