react router v4 nesting

react_router_v4_nesting_routes.js

// wrap <Route> and use this everywhere instead
function RouteNest(props){ return (
  <Route exact={props.exact} path={props.path} render={ p => <props.component {...p} children={props.children}/> } />
)}

export const MainRoutes = props => 

<div className='content layout'>

  <Route exact path="/" component={Landing}/>
  <Route  path={'/contact'} component={Contact}/>
 
  <RouteNest  path={'/thing'} component={CompoWithSub}>
    <RouteNest  path={'/thing/suba'} component={SubComponentA}/>
    <RouteNest  path={'/thing/subb'} component={SubComponentB}/>
  </RouteNest>


</div>

export const CompoWithSub = props => <div>{props.children)</div>