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rack-cors
Rack Middleware for handling Cross-Origin Resource Sharing (CORS), which makes cross-origin AJAX possible.
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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
axios公式
# Be sure to restart your server when you modify this file. # Avoid CORS issues when API is called from the frontend app. # Handle Cross-Origin Resource Sharing (CORS) in order to accept cross-origin AJAX requests. # Read more: https://github.com/cyu/rack-cors Rails.application.config.middleware.insert_before 0, Rack::Cors do allow do origins 'http://データを贈りたいパス' resource '*', headers: :any, methods: [:get, :post, :put, :patch, :delete, :options, :head] end end
vue.js.org