Add CORS Headers & Update HTTP Status Codes #893
Merged
+104
−103
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Cross-Origin Resource Sharing (CORS) is an HTTP-header based mechanism that allows a server to indicate any origins (domain, scheme, or port) other than its own from which a browser should permit loading resources. CORS also relies on a mechanism by which browsers make a "preflight" request to the server hosting the cross-origin resource, in order to check that the server will permit the actual request. In that preflight, the browser sends headers that indicate the HTTP method and headers that will be used in the actual request.
Because the Dropshot framework cannot currently handle CORS preflight requests we will also require a CORS proxy that sits on top of the rest server to handle the preflight request (OPTIONS method) and then sends the actual request to the rest server.