Rack Middleware for handling Cross-Origin Resource Sharing (CORS), which makes cross-origin AJAX possible.

05-Dec-2019 1974
Rack::Cors provides support for Cross-Origin Resource Sharing (CORS) for Rack compatible web applications.The CORS spec allows web applications to make cross domain AJAX calls without using workarounds such as JSONP. See Cross-domain Ajax with Cross-Origin Resource Sharing.
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