CorsAllowCredentials indicates whether or not the response to the request can be exposed when the credentials flag is true.

CorsAllowHeaders defines a list of request headers that can be used when making the actual request.

CorsAllowMethods defines a list methods allowed when accessing the resource.

CorsAllowOrigin defines a list of origins that may access the resource.

CorsMaxAge indicates how long (in seconds) the results of a preflight request can be cached.

PopulateRequestContext is a RequestFunc that populates several values into the context from the HTTP request.

ContextKeyRequestAccept is populated in the context by PopulateRequestContext.

ContextKeyRequestAcceptEncoding is populated in the context by PopulateRequestContext.

ContextKeyRequestAuthorization is populated in the context by PopulateRequestContext.

ContextKeyRequestHost is populated in the context by PopulateRequestContext.

ContextKeyRequestMethod is populated in the context by PopulateRequestContext.

ContextKeyRequestPath is populated in the context by PopulateRequestContext.

ContextKeyRequestProto is populated in the context by PopulateRequestContext.

ContextKeyRequestReferer is populated in the context by PopulateRequestContext.

ContextKeyRequestRemoteAddr is populated in the context by PopulateRequestContext.

ContextKeyRequestURI is populated in the context by PopulateRequestContext.

ContextKeyRequestUserAgent is populated in the context by PopulateRequestContext.

ContextKeyRequestXForwardedFor is populated in the context by PopulateRequestContext.

ContextKeyRequestXForwardedProto is populated in the context by PopulateRequestContext.

ContextKeyRequestXRequestID is populated in the context by PopulateRequestContext.

ContextKeyRequestXTraceID is populated in the context by PopulateRequestContext.

ContextKeyResponseHeaders is populated in the context whenever a ServerFinalizerFunc is specified.

ContextKeyResponseSize is populated in the context whenever a ServerFinalizerFunc is specified.

DefaultCORSConfig is the default CORS middleware config.