public CorsServiceBuilder route(String pathPattern) {
        requireNonNull(pathPattern, "pathPattern");
        firstPolicyBuilder.route(pathPattern);
        return this;
    }
Adds a path pattern that this policy is supposed to be applied to.

@param pathPattern the path pattern that this policy is supposed to be applied to
@throws IllegalArgumentException if the path pattern is not valid
core/src/main/java/com/linecorp/armeria/server/cors/CorsServiceBuilder.java