Practical GraphQL - Become a GraphQL Ninja - Adding CORS to GraphQL

The video tutorial explains the concept of Cross-Origin Resource Sharing (CORS) and its importance in web development. It highlights the issue of browsers blocking resources from different domains or ports and provides a solution by installing and configuring the CORS package in an Express application. The tutorial also emphasizes the need for specific configurations in production environments to ensure security.

Explain how CORS affects the communication between a React app and a GraphQL endpoint running on different ports.

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What is the purpose of installing the CORS package in a React application?

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Describe the steps needed to configure CORS for an Express application.

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What should a developer consult to find detailed information about the CORS NPM package?

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What are the potential security implications of not specifying options for CORS in a production environment?

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