Use multi_json for max compatibility

Author: andrew

lib/split/api.rb

@@ -1,6 +1,6 @@
 require 'sinatra/base'
 require 'split'
-require 'json'
+require 'multi_json'
 
 module Split
   class API < Sinatra::Base
@@ -12,7 +12,7 @@ class API < Sinatra::Base
       control = params[:control]
       alternatives = params[:alternatives]
       alternative = ab_test(experiment, control, alternatives)
-      {:alternative => alternative}.to_json
+      MultiJson.encode({:alternative => alternative})
     end
 
     post '/finished' do

split-api.gemspec

@@ -16,7 +16,7 @@ Gem::Specification.new do |gem|
 
   gem.add_dependency 'split'
   gem.add_dependency 'sinatra'
-  gem.add_dependency 'json'
+  gem.add_dependency 'multi_json'
 
   gem.add_development_dependency 'bundler',     '~> 1.0'
   gem.add_development_dependency 'rspec',       '~> 2.6'