Merge pull request OperationCode#13 from OperationCode/issue#11

Adds CORS. Fixes OperationCode#11

Gemfile

@@ -16,6 +16,7 @@ gem 'operationcode-airtable'
 gem 'operationcode-slack'
 gem 'pg', '~> 0.18'
 gem 'puma', '~> 3.0'
+gem 'rack-cors'
 gem 'rails', '~> 5.0.2'
 gem 'redis', '~> 3.0'
 gem 'sidekiq'
@@ -39,6 +40,4 @@ end
 # Use ActiveModel has_secure_password
 # gem 'bcrypt', '~> 3.1.7'
 
-# Use Rack CORS for handling Cross-Origin Resource Sharing (CORS), making cross-origin AJAX possible
-# gem 'rack-cors'
 

Gemfile.lock

@@ -101,6 +101,7 @@ GEM
     pg (0.20.0)
     puma (3.8.2)
     rack (2.0.1)
+    rack-cors (0.4.1)
     rack-protection (1.5.3)
       rack
     rack-test (0.6.3)
@@ -173,6 +174,7 @@ DEPENDENCIES
   operationcode-slack
   pg (~> 0.18)
   puma (~> 3.0)
+  rack-cors
   rails (~> 5.0.2)
   redis (~> 3.0)
   sidekiq

config/initializers/cors.rb

@@ -5,12 +5,12 @@
 
 # Read more: https://github.com/cyu/rack-cors
 
-# Rails.application.config.middleware.insert_before 0, Rack::Cors do
-#   allow do
-#     origins 'example.com'
-#
-#     resource '*',
-#       headers: :any,
-#       methods: [:get, :post, :put, :patch, :delete, :options, :head]
-#   end
-# end
+Rails.application.config.middleware.insert_before 0, Rack::Cors do
+  allow do
+    origins '*'
+
+    resource '*',
+      headers: :any,
+      methods: [:get, :post, :put, :patch, :delete, :options, :head]
+  end
+end