Refactor cross-origin

- Drop cross_origin gem
- Add header to all responses

#18

Gemfile

@@ -9,7 +9,6 @@ gem 'newrelic_rpm'
 gem 'rake'
 gem 'sequel_pg'
 gem 'sinatra-jsonp'
-gem 'sinatra-cross_origin'
 gem 'unicorn'
 gem 'yajl-ruby'
 

Gemfile.lock

@@ -41,7 +41,6 @@ GEM
       rack (~> 1.5)
       rack-protection (~> 1.4)
       tilt (>= 1.3, < 3)
-    sinatra-cross_origin (0.3.2)
     sinatra-jsonp (0.4.4)
       multi_json (~> 1.8)
       sinatra (~> 1.0)
@@ -65,7 +64,6 @@ DEPENDENCIES
   rake
   sequel_pg
   shotgun
-  sinatra-cross_origin
   sinatra-jsonp
   unicorn
   yajl-ruby

lib/api.rb

@@ -1,7 +1,6 @@
 # frozen_string_literal: true
 
 require 'sinatra'
-require 'sinatra/cross_origin'
 require 'sinatra/jsonp'
 require 'yajl'
 require 'quote'
@@ -44,6 +43,10 @@ helpers do
   end
 end
 
+before do
+  headers 'Access-Control-Allow-Origin' => '*'
+end
+
 get '/' do
   jsonp details: 'http://fixer.io', version: App.version
 end

spec/api_spec.rb

@@ -53,7 +53,9 @@ describe 'the API' do
   end
 
   it 'allows cross-origin requests' do
-    get '/', {}, 'HTTP_ORIGIN' => 'http://localhost'
-    assert_equal 'http://localhost', headers['Access-Control-Allow-Origin']
+    %w(/ /latest /2012-11-20).each do |path|
+      get path
+      assert_equal '*', headers['Access-Control-Allow-Origin']
+    end
   end
 end