CustomWebFilter.java

CustomWebFilter.java

**
 * Workaround of https://github.com/spring-projects/spring-boot/issues/9785 from https://stackoverflow.com/a/45190717/1477873
 *
 * @author Sergey Alekseev
 */
@Component
public class CustomWebFilter implements WebFilter {
    @NotNull
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, @NotNull WebFilterChain chain) {
        if (exchange.getRequest().getURI().getPath().equals("/")) {
            return chain.filter(exchange.mutate().request(exchange.getRequest().mutate().path("/index.html").build()).build());
        }

        return chain.filter(exchange);
    }
}