public WebSocketClientBuilder autoFillOriginHeader(boolean autoFillOriginHeader) {
        //TODO(minwoox): Promote this to AbstractClientOptionsBuilder.
        option(ClientOptions.AUTO_FILL_ORIGIN_HEADER, autoFillOriginHeader);
        return this;
    }
Sets whether to add an {@link HttpHeaderNames#ORIGIN} header automatically when sending
an {@link HttpRequest} when the {@link HttpRequest#headers()} does not have it.
It's {@code true} by default.
core/src/main/java/com/linecorp/armeria/client/websocket/WebSocketClientBuilder.java