public boolean isShortCircuit() {
        return shortCircuit;
    }
Determines whether a CORS request should be rejected if it's invalid before being
further processing.

<p>CORS headers are set after a request is processed. This may not always be desired
and this setting will check that the Origin is valid and if it is not valid no
further processing will take place, and a error will be returned to the calling client.

@return {@code true} if a CORS request should short-circuit upon receiving an invalid Origin header.
core/src/main/java/com/linecorp/armeria/server/cors/CorsConfig.java