The HTTP gem failing urls

Gemfile

source 'https://rubygems.org'

gem 'http', :path =>'/Users/oripekelman/Sites/http'
gem 'sinatra'

server.rb

require 'sinatra'

get '/200' do
  "OK"
end

get '/301' do
  redirect "/200", 301
end

get '/302' do
  redirect "/200", 302
end

get '/303' do
  redirect "/200", 302
end

get '/401' do
  halt 401, 'go away!'
end

get '/402' do
  halt 402, 'go away!'
end

get '/403' do
  halt 403, 'go away!'
end

get '/404' do
  halt 404, 'go away!'
end

get '/501' do
  halt 501, 'Boom!'
end

get '/502' do
  halt 502, 'Boom!'
end

get '/503' do
  halt 503, 'Boom!'
end

test.rb

require 'http'
require 'pry'

codes = [200] + (300..303).to_a + (400..404).to_a + (500..503).to_a

failing_urls = [
  'http://github.com',
  'https://github.com',
  'http://vimeo.com',
  'http://tonyarcieri.com']
  
sinatra_urls = codes.map {|c|"http://localhost:4567/#{c}"}

urls = [
  'http://tonyarcieri.com/',
  'http://gmail.com',
  'http://www.unlimitednovelty.com',
  'http://github.com/',
  'https://github.com/',
  'http://vimeo.com/',
  'http://fr.wikipedia.org/wiki/Bascule_(circuit_logique)',
  'http://www.google.com',
  "https://btc-e.com/api/2/btc_usd/depth"] + sinatra_urls + failing_urls

urls.each do |url|
  begin
    response =  Http.get(url).response
    puts "Worked: #{response.status_code} #{url}"
  rescue Exception => e
    puts "Failed: #{url}"
    puts e.message
    puts e.backtrace.inspect
  end
end