Restricting CORS Access
Learn how to apply CORS configuration in a function that allows access to a web application to be filtered by specific client domains.
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Cross-origin resource sharing (CORS) is a mechanism that allows access to a web application to be filtered by specific client domains. This mechanism is especially useful if a call to an external resource, such as a request to a function, needs to be done from a standard web page.
Web browsers enforce a security policy ...