diff --git a/src/client/component/navlist.tsx b/src/client/component/navlist.tsx
index 5ecff71..6879d77 100644
--- a/src/client/component/navlist.tsx
+++ b/src/client/component/navlist.tsx
@@ -28,12 +28,9 @@ export const BackItem = (props:{to?:string})=>{
 }
 
 export function CommonMenuList(props?:{url?:string}) {
-    //if(props === undefined){
-    //    props = {};
-    //}
-    //props.url = props.url || "";
-    //{props.url !== "" && <><BackItem /> <Divider /></>}
+    let url = props?.url || "";
     return (<NavList>
+        {url !== "" && <><BackItem /> <Divider /></>}
         <NavItem name="All" to="/" icon={<HomeIcon />} />
         <NavItem name="Manga" to="/search?content_type=manga" icon={<CollectionIcon />}></NavItem>
         <NavItem name="Video" to="/search?content_type=video" icon={<VideoIcon />} />
diff --git a/src/client/page/contentinfo.tsx b/src/client/page/contentinfo.tsx
index f824a0d..2c201c1 100644
--- a/src/client/page/contentinfo.tsx
+++ b/src/client/page/contentinfo.tsx
@@ -6,6 +6,7 @@ import { Link, Paper, makeStyles, Theme, Box, useTheme, Typography } from '@mate
 import {ArrowBack as ArrowBackIcon } from '@material-ui/icons';
 import { getPresenter } from './reader/reader';
 import { BackItem, CommonMenuList, ContentInfo, Headline, NavItem, NavList } from '../component/mod';
+import {NotFoundPage} from './404';
 
 export const makeContentInfoUrl = (id: number) => `/doc/${id}`;
 export const makeMangaReaderUrl = (id: number) => `/doc/${id}/reader`;
@@ -45,7 +46,6 @@ export const DocumentAbout = (prop: { match: MatchType }) => {
         })();
     }, []);
     const classes = useStyles();
-    console.log(info.doc);
     if (isNaN(id)) {
         return (
             <Headline menu={menu_list()}>
@@ -83,9 +83,7 @@ export const DocumentAbout = (prop: { match: MatchType }) => {
             </Headline>
         </Route>
         <Route>
-            <Headline menu={menu_list()}>
-                <Typography variant='h2'>404 Not Found invalid url : {prop.match.path}</Typography>
-            </Headline>
+            <NotFoundPage></NotFoundPage>
         </Route>
     </Switch>);
     }