#434

frontend/src/entry-server.tsx

@@ -66,7 +66,9 @@ export const render = async (
     authentication: Pick<RenderContext, 'cookie' | 'forwardedFor'> = { },
 ): Promise<RenderedPage | RouteResponse> => {
   const url = new URL (address, origin)
-  const legacy = legacyLocalePath ({ pathname: url.pathname, search: url.search, hash: '' })
+  const legacy = legacyLocalePath (
+      { pathname: url.pathname, search: url.search, hash: url.hash },
+      pathname => resolvePageRoute (pathname) != null)
   const pathname = legacy == null ? url.pathname : new URL (legacy, origin).pathname
   const segment = pathname.split ('/')[1]
   const known = resolvePageRoute (pathname)