5 files changed, 20 insertions, 24 deletions
diff --git a/files/ja/_redirects.txt b/files/ja/_redirects.txt
index 249a98cdc6..2af45584f1 100644
--- a/files/ja/_redirects.txt
+++ b/files/ja/_redirects.txt
@@ -3217,6 +3217,7 @@
 /ja/docs/Web/API/NavigatorOnLine/onLine	/ja/docs/Web/API/Navigator/onLine
 /ja/docs/Web/API/NavigatorStorage	/ja/docs/orphaned/Web/API/NavigatorStorage
 /ja/docs/Web/API/NavigatorStorage/storage	/ja/docs/orphaned/Web/API/NavigatorStorage/storage
+/ja/docs/Web/API/NetworkInformation/onchange	/ja/docs/Web/API/NetworkInformation/change_event
 /ja/docs/Web/API/Node.appendChild	/ja/docs/Web/API/Node/appendChild
 /ja/docs/Web/API/Node.attributes	/ja/docs/Web/API/Element/attributes
 /ja/docs/Web/API/Node.baseURIObject	/ja/docs/Web/API/Node
@@ -4160,8 +4161,10 @@
 /ja/docs/Web/HTTP/HTTP_access_control/Errors/CORSPreflightDidNotSucceed	/ja/docs/Web/HTTP/CORS/Errors/CORSPreflightDidNotSucceed
 /ja/docs/Web/HTTP/HTTP_access_control/Errors/CORSRequestNotHttp	/ja/docs/Web/HTTP/CORS/Errors/CORSRequestNotHttp
 /ja/docs/Web/HTTP/HTTP_response_codes	/ja/docs/Web/HTTP/Status
+/ja/docs/Web/HTTP/Headers/Cookie2	/ja/docs/conflicting/Web/HTTP/Headers/Cookie
 /ja/docs/Web/HTTP/Headers/Feature-Policy/vr	/ja/docs/Web/HTTP/Headers/Feature-Policy/xr-spatial-tracking
 /ja/docs/Web/HTTP/Headers/Feature-Policy/xr	/ja/docs/conflicting/Web/HTTP/Headers/Feature-Policy/xr-spatial-tracking
+/ja/docs/Web/HTTP/Headers/Set-Cookie2	/ja/docs/Web/HTTP/Headers/Set-Cookie
 /ja/docs/Web/HTTP/Index	/ja/docs/conflicting/Web/HTTP
 /ja/docs/Web/HTTP/Proxy_servers_and_tunneling/Proxy_Auto-Configuration_(PAC)_file	/ja/docs/Web/HTTP/Proxy_servers_and_tunneling/Proxy_Auto-Configuration_PAC_file
 /ja/docs/Web/HTTP/Response_codes	/ja/docs/Web/HTTP/Status
diff --git a/files/ja/_wikihistory.json b/files/ja/_wikihistory.json
index 8898196d62..7c0aa15437 100644
--- a/files/ja/_wikihistory.json
+++ b/files/ja/_wikihistory.json
@@ -19022,14 +19022,14 @@
       "jprichardson"
     ]
   },
-  "Web/API/NetworkInformation/downlinkMax": {
-    "modified": "2019-03-23T22:28:25.185Z",
+  "Web/API/NetworkInformation/change_event": {
+    "modified": "2019-03-23T22:28:29.434Z",
     "contributors": [
       "YuichiNukiyama"
     ]
   },
-  "Web/API/NetworkInformation/onchange": {
-    "modified": "2019-03-23T22:28:29.434Z",
+  "Web/API/NetworkInformation/downlinkMax": {
+    "modified": "2019-03-23T22:28:25.185Z",
     "contributors": [
       "YuichiNukiyama"
     ]
@@ -35983,12 +35983,6 @@
       "technohippy"
     ]
   },
-  "Web/HTTP/Headers/Cookie2": {
-    "modified": "2020-10-15T22:08:54.618Z",
-    "contributors": [
-      "silverskyvicto"
-    ]
-  },
   "Web/HTTP/Headers/Cross-Origin-Resource-Policy": {
     "modified": "2020-10-15T22:28:41.646Z",
     "contributors": [
@@ -36284,12 +36278,8 @@
     ]
   },
   "Web/HTTP/Headers/Set-Cookie": {
-    "modified": "2020-10-15T22:09:30.260Z",
+    "modified": "2020-10-15T22:09:30.672Z",
     "contributors": [
-      "pcw",
-      "mfuji09",
-      "maizuka",
-      "niusounds",
       "silverskyvicto"
     ]
   },
@@ -36300,12 +36290,6 @@
       "silverskyvicto"
     ]
   },
-  "Web/HTTP/Headers/Set-Cookie2": {
-    "modified": "2020-10-15T22:09:30.672Z",
-    "contributors": [
-      "silverskyvicto"
-    ]
-  },
   "Web/HTTP/Headers/SourceMap": {
     "modified": "2020-10-15T22:09:30.889Z",
     "contributors": [
@@ -48552,6 +48536,12 @@
       "mfuji09"
     ]
   },
+  "conflicting/Web/HTTP/Headers/Cookie": {
+    "modified": "2020-10-15T22:08:54.618Z",
+    "contributors": [
+      "silverskyvicto"
+    ]
+  },
   "conflicting/Web/HTTP/Headers/Feature-Policy/xr-spatial-tracking": {
     "modified": "2020-08-12T12:42:41.854Z",
     "contributors": [
diff --git a/files/ja/web/http/headers/cookie2/index.html b/files/ja/conflicting/web/http/headers/cookie/index.html
index 7f95c9941b..8bb97a8215 100644
--- a/files/ja/web/http/headers/cookie2/index.html
+++ b/files/ja/conflicting/web/http/headers/cookie/index.html
@@ -1,6 +1,6 @@
 ---
 title: Cookie2
-slug: Web/HTTP/Headers/Cookie2
+slug: conflicting/Web/HTTP/Headers/Cookie
 tags:
   - HTTP
   - Obsolete
@@ -8,6 +8,7 @@ tags:
   - リクエスト
   - リファレンス
 translation_of: Web/HTTP/Headers/Cookie2
+original_slug: Web/HTTP/Headers/Cookie2
 ---
 <p>{{HTTPSidebar}} {{obsolete_header}}</p>
 
diff --git a/files/ja/web/api/networkinformation/onchange/index.html b/files/ja/web/api/networkinformation/change_event/index.html
index f6c540bebe..926f813316 100644
--- a/files/ja/web/api/networkinformation/onchange/index.html
+++ b/files/ja/web/api/networkinformation/change_event/index.html
@@ -1,6 +1,6 @@
 ---
 title: NetworkInformation.onchange
-slug: Web/API/NetworkInformation/onchange
+slug: Web/API/NetworkInformation/change_event
 tags:
   - API
   - Event Handler
@@ -10,6 +10,7 @@ tags:
   - Property
   - Reference
 translation_of: Web/API/NetworkInformation/onchange
+original_slug: Web/API/NetworkInformation/onchange
 ---
 <p>{{apiref("Network Information API")}}{{SeeCompatTable}}</p>
 
diff --git a/files/ja/web/http/headers/set-cookie2/index.html b/files/ja/web/http/headers/set-cookie/index.html
index c1485dec4a..ca21a20bef 100644
--- a/files/ja/web/http/headers/set-cookie2/index.html
+++ b/files/ja/web/http/headers/set-cookie/index.html
@@ -1,6 +1,6 @@
 ---
 title: Set-Cookie2
-slug: Web/HTTP/Headers/Set-Cookie2
+slug: Web/HTTP/Headers/Set-Cookie
 tags:
   - Cookies
   - HTTP
@@ -8,6 +8,7 @@ tags:
   - ヘッダー
   - リファレンス
 translation_of: Web/HTTP/Headers/Set-Cookie2
+original_slug: Web/HTTP/Headers/Set-Cookie2
 ---
 <p>{{HTTPSidebar}} {{obsolete_header}}</p>