Add development CORS policy for Storybook

Author: developius

Gemfile

@@ -34,6 +34,7 @@ gem "jbuilder", "~> 2.7"
 
 gem "view_component", require: "view_component/engine"
 gem "view_component_storybook"
+gem "rack-cors"
 
 group :development, :test do
   # Call "byebug" anywhere in the code to stop execution and get a debugger console

Gemfile.lock

@@ -138,6 +138,8 @@ GEM
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)
+    rack-cors (1.1.1)
+      rack (>= 2.0.0)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails-dom-testing (2.0.3)
@@ -191,6 +193,7 @@ DEPENDENCIES
   importmap-rails (>= 0.3.4)
   jbuilder (~> 2.7)
   puma (~> 5.0)
+  rack-cors
   rails!
   selenium-webdriver
   sqlite3 (~> 1.4)

config/environments/development.rb

@@ -64,4 +64,11 @@
 
   # Uncomment if you wish to allow Action Cable access from any origin.
   # config.action_cable.disable_request_forgery_protection = true
+
+  config.middleware.insert_before 0, Rack::Cors do
+    allow do
+      origins '*'
+      resource '/rails/stories/*', :headers => :any, :methods => [:get]
+    end
+  end
 end