diff --git a/frontend/pages/projects/_id/annotation/index.vue b/frontend/pages/projects/_id/annotation/index.vue
index 90cbc783..f9954d05 100644
--- a/frontend/pages/projects/_id/annotation/index.vue
+++ b/frontend/pages/projects/_id/annotation/index.vue
@@ -27,49 +27,54 @@ import SideBarLabeling from '~/components/organisms/SideBarLabeling'
 
 export default {
   layout: 'annotation',
+
   components: {
     EntityItemBox,
     SideBarLabeling
   },
-  data: () => ({
-    progress: 30,
-    metadata: '{"wikiPageId":2}',
-    search: '',
-    labels: [
-      {
-        id: 1,
-        name: 'Location',
-        color: '#E91E63',
-        shortcut: 'l'
-      },
-      {
-        id: 2,
-        name: 'Organization',
-        color: '#03A9F4',
-        shortcut: 'o'
-      },
-      {
-        id: 3,
-        name: 'Person',
-        color: '#009688',
-        shortcut: 'p'
-      },
-      {
-        id: 4,
-        name: 'Date',
-        color: '#FF6F00',
-        shortcut: 'd'
-      },
-      {
-        id: 5,
-        name: 'Other',
-        color: '#333333',
-        shortcut: 't'
-      }
-    ]
-  })
+
+  data() {
+    return {
+      progress: 30,
+      metadata: '{"wikiPageId":2}',
+      search: '',
+      labels: [
+        {
+          id: 1,
+          name: 'Location',
+          color: '#E91E63',
+          shortcut: 'l'
+        },
+        {
+          id: 2,
+          name: 'Organization',
+          color: '#03A9F4',
+          shortcut: 'o'
+        },
+        {
+          id: 3,
+          name: 'Person',
+          color: '#009688',
+          shortcut: 'p'
+        },
+        {
+          id: 4,
+          name: 'Date',
+          color: '#FF6F00',
+          shortcut: 'd'
+        },
+        {
+          id: 5,
+          name: 'Other',
+          color: '#333333',
+          shortcut: 't'
+        }
+      ]
+    }
+  },
+
+  validate({ params }) {
+    return /^\d+$/.test(params.id)
+  }
 }
 </script>
-
-<style scoped>
-</style>
diff --git a/frontend/pages/projects/_id/classification/index.vue b/frontend/pages/projects/_id/classification/index.vue
index fa3b4383..42a93bb9 100644
--- a/frontend/pages/projects/_id/classification/index.vue
+++ b/frontend/pages/projects/_id/classification/index.vue
@@ -23,179 +23,53 @@ import SideBarLabeling from '~/components/organisms/SideBarLabeling'
 
 export default {
   layout: 'annotation',
+
   components: {
     TextClassification,
     SideBarLabeling
   },
-  data: () => ({
-    progress: 30,
-    metadata: '{"wikiPageId":2}',
-    search: '',
-    content: 'Sony',
-    text:
-      'Barack Hussein Obama II (born August 4, 1961) is an American attorney and politician who served as the 44th president of the United States from 2009 to 2017. A member of the Democratic Party, he was the first African American to be elected to the presidency. He previously served as a U.S. senator from Illinois from 2005 to 2008 and an Illinois state senator from 1997 to 2004.',
-    labelName: 'ORG',
-    labels: [
-      {
-        id: 1,
-        name: 'Location',
-        color: '#E91E63',
-        shortcut: 'l'
-      },
-      {
-        id: 2,
-        name: 'Organization',
-        color: '#03A9F4',
-        shortcut: 'o'
-      },
-      {
-        id: 3,
-        name: 'Person',
-        color: '#009688',
-        shortcut: 'p'
-      },
-      {
-        id: 4,
-        name: 'Date',
-        color: '#FF6F00',
-        shortcut: 'd'
-      },
-      {
-        id: 5,
-        name: 'Other',
-        color: '#333333',
-        shortcut: 't'
-      }
-    ],
-    annotations: [
-      {
-        id: 2,
-        prob: 0.0,
-        label: 3,
-        start_offset: 0,
-        end_offset: 23,
-        user: 1,
-        document: 1
-      },
-      {
-        id: 3,
-        prob: 0.0,
-        label: 4,
-        start_offset: 30,
-        end_offset: 44,
-        user: 1,
-        document: 1
-      },
-      {
-        id: 2,
-        prob: 0.0,
-        label: 1,
-        start_offset: 125,
-        end_offset: 138,
-        user: 1,
-        document: 1
-      },
-      {
-        id: 2,
-        prob: 0.0,
-        label: 4,
-        start_offset: 144,
-        end_offset: 148,
-        user: 1,
-        document: 1
-      },
-      {
-        id: 2,
-        prob: 0.0,
-        label: 4,
-        start_offset: 152,
-        end_offset: 156,
-        user: 1,
-        document: 1
-      },
-      {
-        id: 2,
-        prob: 0.0,
-        label: 2,
-        start_offset: 174,
-        end_offset: 190,
-        user: 1,
-        document: 1
-      },
-      {
-        id: 2,
-        prob: 0.0,
-        label: 1,
-        start_offset: 285,
-        end_offset: 289,
-        user: 1,
-        document: 1
-      },
-      {
-        id: 2,
-        prob: 0.0,
-        label: 1,
-        start_offset: 303,
-        end_offset: 311,
-        user: 1,
-        document: 1
-      },
-      {
-        id: 2,
-        prob: 0.0,
-        label: 4,
-        start_offset: 317,
-        end_offset: 321,
-        user: 1,
-        document: 1
-      },
-      {
-        id: 2,
-        prob: 0.0,
-        label: 4,
-        start_offset: 325,
-        end_offset: 329,
-        user: 1,
-        document: 1
-      },
-      {
-        id: 2,
-        prob: 0.0,
-        label: 1,
-        start_offset: 337,
-        end_offset: 345,
-        user: 1,
-        document: 1
-      },
-      {
-        id: 2,
-        prob: 0.0,
-        label: 4,
-        start_offset: 365,
-        end_offset: 369,
-        user: 1,
-        document: 1
-      },
-      {
-        id: 2,
-        prob: 0.0,
-        label: 4,
-        start_offset: 373,
-        end_offset: 377,
-        user: 1,
-        document: 1
-      }
-    ]
-  }),
 
-  methods: {
-    save() {},
-    cancel() {},
-    open() {},
-    close() {}
+  data() {
+    return {
+      progress: 30,
+      metadata: '{"wikiPageId":2}',
+      labels: [
+        {
+          id: 1,
+          name: 'Location',
+          color: '#E91E63',
+          shortcut: 'l'
+        },
+        {
+          id: 2,
+          name: 'Organization',
+          color: '#03A9F4',
+          shortcut: 'o'
+        },
+        {
+          id: 3,
+          name: 'Person',
+          color: '#009688',
+          shortcut: 'p'
+        },
+        {
+          id: 4,
+          name: 'Date',
+          color: '#FF6F00',
+          shortcut: 'd'
+        },
+        {
+          id: 5,
+          name: 'Other',
+          color: '#333333',
+          shortcut: 't'
+        }
+      ]
+    }
+  },
+
+  validate({ params }) {
+    return /^\d+$/.test(params.id)
   }
 }
 </script>
-
-<style scoped>
-</style>
diff --git a/frontend/pages/projects/_id/dataset/index.vue b/frontend/pages/projects/_id/dataset/index.vue
index f0bba761..a38611c9 100644
--- a/frontend/pages/projects/_id/dataset/index.vue
+++ b/frontend/pages/projects/_id/dataset/index.vue
@@ -15,11 +15,13 @@ import DocumentDeletionButton from '@/components/containers/DocumentDeletionButt
 
 export default {
   layout: 'project',
+
   components: {
     DocumentList,
     DocumentUploadButton,
     DocumentDeletionButton
   },
+
   validate({ params }) {
     return /^\d+$/.test(params.id)
   }
diff --git a/frontend/pages/projects/_id/download/index.vue b/frontend/pages/projects/_id/download/index.vue
index 5bed2f13..067ad5d8 100644
--- a/frontend/pages/projects/_id/download/index.vue
+++ b/frontend/pages/projects/_id/download/index.vue
@@ -12,6 +12,7 @@
 <script>
 export default {
   layout: 'project',
+
   computed: {
     url() {
       const projectId = this.$route.params.id
diff --git a/frontend/pages/projects/_id/guideline/index.vue b/frontend/pages/projects/_id/guideline/index.vue
index eecfd26f..95e666bb 100644
--- a/frontend/pages/projects/_id/guideline/index.vue
+++ b/frontend/pages/projects/_id/guideline/index.vue
@@ -16,6 +16,7 @@ import { mapState, mapActions } from 'vuex'
 
 export default {
   layout: 'project',
+
   components: {
     Editor
   },
diff --git a/frontend/pages/projects/_id/labels/index.vue b/frontend/pages/projects/_id/labels/index.vue
index dad2396b..bcc1dbf0 100644
--- a/frontend/pages/projects/_id/labels/index.vue
+++ b/frontend/pages/projects/_id/labels/index.vue
@@ -15,11 +15,13 @@ import LabelDeletionButton from '@/components/containers/LabelDeletionButton'
 
 export default {
   layout: 'project',
+
   components: {
     LabelList,
     LabelCreationButton,
     LabelDeletionButton
   },
+
   validate({ params }) {
     return /^\d+$/.test(params.id)
   }
diff --git a/frontend/pages/projects/_id/members/index.vue b/frontend/pages/projects/_id/members/index.vue
index 818ffa4f..3fcd92fa 100644
--- a/frontend/pages/projects/_id/members/index.vue
+++ b/frontend/pages/projects/_id/members/index.vue
@@ -15,11 +15,13 @@ import MemberDeletionButton from '@/components/containers/MemberDeletionButton'
 
 export default {
   layout: 'project',
+
   components: {
     MemberList,
     MemberAdditionButton,
     MemberDeletionButton
   },
+
   validate({ params }) {
     return /^\d+$/.test(params.id)
   }
diff --git a/frontend/pages/projects/_id/seq2seq/index.vue b/frontend/pages/projects/_id/seq2seq/index.vue
index fbfe7d4c..b4d26c9b 100644
--- a/frontend/pages/projects/_id/seq2seq/index.vue
+++ b/frontend/pages/projects/_id/seq2seq/index.vue
@@ -23,47 +23,55 @@ import SideBarLabeling from '~/components/organisms/SideBarLabeling'
 
 export default {
   layout: 'annotation',
+
   components: {
     Seq2seqContainer,
     SideBarLabeling
   },
-  data: () => ({
-    progress: 30,
-    metadata: '{"wikiPageId":2}',
-    search: '',
-    labels: [
-      {
-        id: 1,
-        name: 'Location',
-        color: '#E91E63',
-        shortcut: 'l'
-      },
-      {
-        id: 2,
-        name: 'Organization',
-        color: '#03A9F4',
-        shortcut: 'o'
-      },
-      {
-        id: 3,
-        name: 'Person',
-        color: '#009688',
-        shortcut: 'p'
-      },
-      {
-        id: 4,
-        name: 'Date',
-        color: '#FF6F00',
-        shortcut: 'd'
-      },
-      {
-        id: 5,
-        name: 'Other',
-        color: '#333333',
-        shortcut: 't'
-      }
-    ]
-  })
+
+  data() {
+    return {
+      progress: 30,
+      metadata: '{"wikiPageId":2}',
+      search: '',
+      labels: [
+        {
+          id: 1,
+          name: 'Location',
+          color: '#E91E63',
+          shortcut: 'l'
+        },
+        {
+          id: 2,
+          name: 'Organization',
+          color: '#03A9F4',
+          shortcut: 'o'
+        },
+        {
+          id: 3,
+          name: 'Person',
+          color: '#009688',
+          shortcut: 'p'
+        },
+        {
+          id: 4,
+          name: 'Date',
+          color: '#FF6F00',
+          shortcut: 'd'
+        },
+        {
+          id: 5,
+          name: 'Other',
+          color: '#333333',
+          shortcut: 't'
+        }
+      ]
+    }
+  },
+
+  validate({ params }) {
+    return /^\d+$/.test(params.id)
+  }
 }
 </script>