Supporting url-pattern custom pattern syntax

[sehcheese]

url-patterns supports custom pattern syntax (doc). redux-little-router does not use url-pattern directly, but does use its syntax. If I use the default url-pattern syntax, I am able to access state.router.params, which has the parameters parsed from the URL. However, if I use a UrlPattern with custom syntax, state.router.params is undefined. I can accomplish the same effect by using urlPattern.match(state.router.pathname), but that requires importing my UrlPattern wherever I need to do that. It would be great if redux-little-router supported custom syntax in UrlPatterns, maybe as an additional parameter in routerForBrowser?