läuft schon

public/index.html

@@ -9,7 +9,6 @@
       name="description"
       content="Web site created using create-react-app"
     />
-    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
     <!--
       manifest.json provides metadata used when your web app is installed on a
       user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/

public/manifest.json

@@ -6,19 +6,9 @@
       "src": "favicon.ico",
       "sizes": "64x64 32x32 24x24 16x16",
       "type": "image/x-icon"
-    },
-    {
-      "src": "logo192.png",
-      "type": "image/png",
-      "sizes": "192x192"
-    },
-    {
-      "src": "logo512.png",
-      "type": "image/png",
-      "sizes": "512x512"
     }
   ],
-  "start_url": ".",
+  "start_url": "./dog",
   "display": "standalone",
   "theme_color": "#000000",
   "background_color": "#ffffff"