Spring catch all route for index.html

Question

I\'m developing a spring backend for a react-based single page application where I\'m using react-router for client-side routing.

Beside the index.html page the back

Answer 1

Found an answer by looking at this question

@Bean
public EmbeddedServletContainerCustomizer notFoundCustomizer() {
    return new EmbeddedServletContainerCustomizer() {
        @Override
        public void customize(ConfigurableEmbeddedServletContainer container) {
            container.addErrorPages(new ErrorPage(HttpStatus.NOT_FOUND, "/"));
        }
    };
}