[CRON] sync translated content

19 files changed, 153 insertions, 119 deletions

diff --git a/files/ja/_redirects.txt b/files/ja/_redirects.txt
index f4b7a44b99..3bd3759ed7 100644
--- a/files/ja/_redirects.txt
+++ b/files/ja/_redirects.txt
@@ -1869,6 +1869,7 @@
 /ja/docs/Firefox_9_for_developers	/ja/docs/Mozilla/Firefox/Releases/9
 /ja/docs/Focus_management_in_HTML	/ja/docs/Web/API/Document/hasFocus
 /ja/docs/Full_page_zoom	/ja/docs/Mozilla/Firefox/Releases/3/Full_page_zoom
+/ja/docs/Games/Index	/ja/docs/conflicting/Games
 /ja/docs/Games/Introduction_to_HTML5_Game_Gevelopment_(summary)	/ja/docs/Games/Introduction_to_HTML5_Game_Development
 /ja/docs/Games/Workflows	/ja/docs/Games/Tutorials
 /ja/docs/Games/Workflows/2D_Breakout_game_pure_JavaScript	/ja/docs/Games/Tutorials/2D_Breakout_game_pure_JavaScript
@@ -1891,6 +1892,7 @@
 /ja/docs/Glossary/DTD	/ja/docs/Glossary/Doctype
 /ja/docs/Glossary/Global_attribute	/ja/docs/Web/HTML/Global_attributes
 /ja/docs/Glossary/Header	/ja/docs/Glossary/HTTP_header
+/ja/docs/Glossary/Index	/ja/docs/conflicting/Glossary
 /ja/docs/Glossary/POP3	/ja/docs/Glossary/POP
 /ja/docs/Glossary/SSL_Glossary	/ja/docs/Glossary/SSL
 /ja/docs/Glossary/Signature/セキュリティ	/ja/docs/Glossary/Signature/Security
@@ -2693,6 +2695,7 @@
 /ja/docs/Learn/HTML/Forms/Your_first_HTML_form	/ja/docs/Learn/Forms/Your_first_form
 /ja/docs/Learn/HTML/Forms/Your_first_HTML_form/Example	/ja/docs/Learn/Forms/Your_first_form/Example
 /ja/docs/Learn/HTML/Introduction_to_HTML/高度なテキスト成型	/ja/docs/Learn/HTML/Introduction_to_HTML/Advanced_text_formatting
+/ja/docs/Learn/Index	/ja/docs/conflicting/Learn
 /ja/docs/Learn/JavaScript/Asynchronous/Concepts	/ja/docs/Learn/JavaScript/Asynchronous/Introducing
 /ja/docs/Learn/JavaScript/Objects/Inheritance	/ja/docs/Learn/JavaScript/Objects/Classes_in_JavaScript
 /ja/docs/Learn/JavaScript/Objects/Object-oriented_JS	/ja/docs/conflicting/Learn/JavaScript/Objects/Classes_in_JavaScript
@@ -2785,6 +2788,7 @@
 /ja/docs/Mozilla/Add-ons/WebExtensions/API/devtools.inspectedWindow/tabId	/ja/docs/Mozilla/Add-ons/WebExtensions/API/devtools/inspectedWindow/tabId
 /ja/docs/Mozilla/Add-ons/WebExtensions/API/devtools.network	/ja/docs/Mozilla/Add-ons/WebExtensions/API/devtools/network
 /ja/docs/Mozilla/Add-ons/WebExtensions/API/devtools.panels	/ja/docs/Mozilla/Add-ons/WebExtensions/API/devtools/panels
+/ja/docs/Mozilla/Add-ons/WebExtensions/Index	/ja/docs/conflicting/Mozilla/Add-ons/WebExtensions
 /ja/docs/Mozilla/Add-ons/WebExtensions/ThunderbirdにおけるWebExtensionsによるアドイン開発	/ja/docs/Mozilla/Add-ons/WebExtensions/Developing_WebExtensions_for_Thunderbird
 /ja/docs/Mozilla/Add-ons/WebExtensions/Using_the_JavaScript_APIs	/ja/docs/Mozilla/Add-ons/WebExtensions/API
 /ja/docs/Mozilla/Add-ons/WebExtensions/Walkthrough	/ja/docs/Mozilla/Add-ons/WebExtensions/Your_second_WebExtension
@@ -2938,6 +2942,7 @@
 /ja/docs/Tools/Debugger_(before_Firefox_52)/Keyboard_shortcuts	/ja/docs/orphaned/Tools/Debugger_(before_Firefox_52)/Keyboard_shortcuts
 /ja/docs/Tools/Debugger_(before_Firefox_52)/Settings	/ja/docs/orphaned/Tools/Debugger_(before_Firefox_52)/Settings
 /ja/docs/Tools/Debugger_(before_Firefox_52)/UI_Tour	/ja/docs/orphaned/Tools/Debugger_(before_Firefox_52)/UI_Tour
+/ja/docs/Tools/Index	/ja/docs/conflicting/Tools
 /ja/docs/Tools/Memory/Comparing_heap_snapshots	/ja/docs/Tools/Memory/Basic_operations
 /ja/docs/Tools/Memory/Open_the_Memory_tool	/ja/docs/Tools/Memory/Basic_operations
 /ja/docs/Tools/Memory/Take_a_heap_snapshot	/ja/docs/Tools/Memory/Basic_operations
@@ -3098,6 +3103,8 @@
 /ja/docs/Web/API/Event/button	/ja/docs/Web/API/MouseEvent/button
 /ja/docs/Web/API/Event/createEvent	/ja/docs/Web/API/Document/createEvent
 /ja/docs/Web/API/EventHandler	/ja/docs/Web/Events/Event_handlers
+/ja/docs/Web/API/EventSource/onerror	/ja/docs/Web/API/EventSource/error_event
+/ja/docs/Web/API/EventSource/onmessage	/ja/docs/Web/API/EventSource/message_event
 /ja/docs/Web/API/EventTarget.addEventListener	/ja/docs/Web/API/EventTarget/addEventListener
 /ja/docs/Web/API/EventTarget.dispatchEvent	/ja/docs/Web/API/EventTarget/dispatchEvent
 /ja/docs/Web/API/EventTarget.removeEventListener	/ja/docs/Web/API/EventTarget/removeEventListener
@@ -3180,6 +3187,7 @@
 /ja/docs/Web/API/IndexedDB_API/Basic_Concepts_Behind_IndexedDB	/ja/docs/Web/API/IndexedDB_API/Basic_Terminology
 /ja/docs/Web/API/MediaCapabilitiesInfo	/ja/docs/Web/API/MediaCapabilities/encodingInfo
 /ja/docs/Web/API/MediaDevices/ondevicechange	/ja/docs/Web/API/MediaDevices/devicechange_event
+/ja/docs/Web/API/MediaQueryList/onchange	/ja/docs/Web/API/MediaQueryList/change_event
 /ja/docs/Web/API/MediaRecorder_API	/ja/docs/Web/API/MediaStream_Recording_API
 /ja/docs/Web/API/MediaStreamConstraints	/ja/docs/conflicting/Web/API/MediaDevices/getUserMedia
 /ja/docs/Web/API/MouseEvent/which	/ja/docs/Web/API/UIEvent/which
@@ -3634,6 +3642,7 @@
 /ja/docs/Web/Accessibility/ARIA/ARIA_Techniques/Using_the_checkbox_role	/ja/docs/Web/Accessibility/ARIA/Roles/checkbox_role
 /ja/docs/Web/Accessibility/ARIA/widgets/overview	/ja/docs/Web/Accessibility/ARIA/widgets
 /ja/docs/Web/Accessibility/Accessibility_FAQ	/ja/docs/Web/Accessibility/FAQ
+/ja/docs/Web/Accessibility/Index	/ja/docs/conflicting/Web/Accessibility
 /ja/docs/Web/Apps/Build/Manipulating_media	/ja/docs/Web/Guide/Audio_and_video_delivery
 /ja/docs/Web/Apps/Build/Manipulating_media/Adding_captions_and_subtitles_to_HTML5_video	/ja/docs/Web/Guide/Audio_and_video_delivery/Adding_captions_and_subtitles_to_HTML5_video
 /ja/docs/Web/Apps/Build/Manipulating_media/Live_streaming_web_audio_and_video	/ja/docs/Web/Guide/Audio_and_video_delivery/Live_streaming_web_audio_and_video
@@ -4008,6 +4017,7 @@
 /ja/docs/Web/Guide/HTML/Introduction	/ja/docs/Learn/HTML/Introduction_to_HTML
 /ja/docs/Web/Guide/HTML/Obsolete_things_to_avoid	/ja/docs/Learn/HTML/Introduction_to_HTML
 /ja/docs/Web/Guide/HTML/Using_HTML_sections_and_outlines	/ja/docs/orphaned/Web/Guide/HTML/Using_HTML_sections_and_outlines
+/ja/docs/Web/Guide/Index	/ja/docs/conflicting/Web/Guide
 /ja/docs/Web/Guide/Localizations_and_character_encodings	/ja/docs/orphaned/Web/Guide/Localizations_and_character_encodings
 /ja/docs/Web/Guide/Performance/Using_web_workers	/ja/docs/Web/API/Web_Workers_API/Using_web_workers
 /ja/docs/Web/Guide/User_experience/Using_the_Page_Visibility_API	/ja/docs/Web/API/Page_Visibility_API
@@ -4111,6 +4121,7 @@
 /ja/docs/Web/HTML/HTML_Elements/strong	/ja/docs/Web/HTML/Element/strong
 /ja/docs/Web/HTML/HTML_Elements/title	/ja/docs/Web/HTML/Element/title
 /ja/docs/Web/HTML/HTML_Elements/var	/ja/docs/Web/HTML/Element/var
+/ja/docs/Web/HTML/Index	/ja/docs/conflicting/Web/HTML
 /ja/docs/Web/HTML/Introduction	/ja/docs/Learn/HTML/Introduction_to_HTML
 /ja/docs/Web/HTML/Introduction_to_HTML5	/ja/docs/orphaned/Web/Guide/HTML/HTML5/Introduction_to_HTML5
 /ja/docs/Web/HTML/Optimizing_your_pages_for_speculative_parsing	/ja/docs/Glossary/speculative_parsing
@@ -4141,6 +4152,7 @@
 /ja/docs/Web/HTTP/HTTP_response_codes	/ja/docs/Web/HTTP/Status
 /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/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
 /ja/docs/Web/HTTP/Response_codes/204	/ja/docs/Web/HTTP/Status/204
@@ -4398,6 +4410,7 @@
 /ja/docs/Web/JavaScript/Typed_arrays/Uint32Array	/ja/docs/Web/JavaScript/Reference/Global_objects/Uint32Array
 /ja/docs/Web/JavaScript/Typed_arrays/Uint8Array	/ja/docs/Web/JavaScript/Reference/Global_objects/Uint8Array
 /ja/docs/Web/Manifest/serviceworker	/ja/docs/orphaned/Web/Manifest/serviceworker
+/ja/docs/Web/MathML/Index	/ja/docs/conflicting/Web/MathML
 /ja/docs/Web/Progressive_web_apps/Advantages	/ja/docs/Web/Progressive_web_apps/Introduction
 /ja/docs/Web/Progressive_web_apps/Responsive	/ja/docs/Web/Progressive_web_apps
 /ja/docs/Web/Progressive_web_apps/Responsive/Media_types	/ja/docs/conflicting/Web/CSS/Media_Queries/Using_media_queries
@@ -4435,6 +4448,7 @@
 /ja/docs/Web/Reference/Events/vrdisplayconnected	/ja/docs/Web/API/Window/vrdisplayconnect_event
 /ja/docs/Web/Reference/Events/vrdisplaydisconnected	/ja/docs/Web/API/Window/vrdisplaydisconnect_event
 /ja/docs/Web/Reference/Events/vrdisplaypresentchange	/ja/docs/Web/API/Window/vrdisplaypresentchange_event
+/ja/docs/Web/SVG/Index	/ja/docs/conflicting/Web/SVG
 /ja/docs/Web/Security/CSP	/ja/docs/Web/HTTP/CSP
 /ja/docs/Web/Security/CSP/CSP_policy_directives	/ja/docs/Web/HTTP/Headers/Content-Security-Policy
 /ja/docs/Web/Security/CSP/Default_CSP_restrictions	/ja/docs/Web/HTTP/Headers/Content-Security-Policy
@@ -4467,6 +4481,7 @@
 /ja/docs/Web/Web_Components/Custom_Elements	/ja/docs/Web/Web_Components/Using_custom_elements
 /ja/docs/Web/Web_Components/HTML_Imports	/ja/docs/conflicting/Web/Web_Components
 /ja/docs/Web/Web_Components/Status_in_Firefox	/ja/docs/orphaned/Web/Web_Components/Status_in_Firefox
+/ja/docs/Web/XPath/Index	/ja/docs/conflicting/Web/XPath
 /ja/docs/Web/XSLT/Elements	/ja/docs/Web/XSLT/Element
 /ja/docs/Web/XSLT/Elements/apply-imports	/ja/docs/Web/XSLT/Element/apply-imports
 /ja/docs/Web/XSLT/Elements/apply-templates	/ja/docs/Web/XSLT/Element/apply-templates
@@ -4503,6 +4518,7 @@
 /ja/docs/Web/XSLT/Elements/variable	/ja/docs/Web/XSLT/Element/variable
 /ja/docs/Web/XSLT/Elements/when	/ja/docs/Web/XSLT/Element/when
 /ja/docs/Web/XSLT/Elements/with-param	/ja/docs/Web/XSLT/Element/with-param
+/ja/docs/Web/XSLT/Index	/ja/docs/conflicting/Web/XSLT
 /ja/docs/Web/XSLT/The_XSLT_JavaScript_Interface_in_Gecko	/ja/docs/Web/XSLT/XSLT_JS_interface_in_Gecko
 /ja/docs/Web/XSLT/The_XSLT_JavaScript_Interface_in_Gecko/Advanced_Example	/ja/docs/Web/XSLT/XSLT_JS_interface_in_Gecko/Advanced_Example
 /ja/docs/Web/XSLT/The_XSLT_JavaScript_Interface_in_Gecko/Basic_Example	/ja/docs/Web/XSLT/XSLT_JS_interface_in_Gecko/Basic_Example
@@ -4521,6 +4537,7 @@
 /ja/docs/WebAPI/Proximity	/ja/docs/Web/API/Proximity_Events
 /ja/docs/WebAPI/Using_Web_Notifications	/ja/docs/Web/API/Notifications_API/Using_the_Notifications_API
 /ja/docs/WebAPI/Using_geolocation	/ja/docs/Web/API/Geolocation_API
+/ja/docs/WebAssembly/Index	/ja/docs/conflicting/WebAssembly
 /ja/docs/WebGL	/ja/docs/Web/API/WebGL_API
 /ja/docs/WebGL/Adding_2D_content_to_a_WebGL_context	/ja/docs/Web/API/WebGL_API/Tutorial/Adding_2D_content_to_a_WebGL_context
 /ja/docs/WebGL/Animating_objects_with_WebGL	/ja/docs/Web/API/WebGL_API/Tutorial/Animating_objects_with_WebGL
@@ -4617,7 +4634,7 @@
 /ja/docs/XPath/Functions/translate	/ja/docs/Web/XPath/Functions/translate
 /ja/docs/XPath/Functions/true	/ja/docs/Web/XPath/Functions/true
 /ja/docs/XPath/Functions/unparsed-entity-url	/ja/docs/Web/XPath/Functions/unparsed-entity-url
-/ja/docs/XPath/Index	/ja/docs/Web/XPath/Index
+/ja/docs/XPath/Index	/ja/docs/conflicting/Web/XPath
 /ja/docs/XPath/Snippets	/ja/docs/Web/XPath/Snippets
 /ja/docs/XPath:Axes	/ja/docs/Web/XPath/Axes
 /ja/docs/XPath:Functions	/ja/docs/Web/XPath/Functions
@@ -4687,7 +4704,7 @@
 /ja/docs/XSLT/Elements/variable	/ja/docs/Web/XSLT/Element/variable
 /ja/docs/XSLT/Elements/when	/ja/docs/Web/XSLT/Element/when
 /ja/docs/XSLT/Elements/with-param	/ja/docs/Web/XSLT/Element/with-param
-/ja/docs/XSLT/Index	/ja/docs/Web/XSLT/Index
+/ja/docs/XSLT/Index	/ja/docs/conflicting/Web/XSLT
 /ja/docs/XSLT/PI_Parameters	/ja/docs/Web/XSLT/PI_Parameters
 /ja/docs/XSLT/The_XSLT_JavaScript_Interface_in_Gecko	/ja/docs/Web/XSLT/XSLT_JS_interface_in_Gecko
 /ja/docs/XSLT/The_XSLT_JavaScript_Interface_in_Gecko/Advanced_Example	/ja/docs/Web/XSLT/XSLT_JS_interface_in_Gecko/Advanced_Example
diff --git a/files/ja/_wikihistory.json b/files/ja/_wikihistory.json
index e42e93574b..6b0e4a264b 100644
--- a/files/ja/_wikihistory.json
+++ b/files/ja/_wikihistory.json
@@ -29,13 +29,6 @@
       "Uemmra3"
     ]
   },
-  "Games/Index": {
-    "modified": "2019-01-16T21:55:46.834Z",
-    "contributors": [
-      "wbamberg",
-      "Marsf"
-    ]
-  },
   "Games/Introduction": {
     "modified": "2019-03-23T22:51:04.568Z",
     "contributors": [
@@ -1821,13 +1814,6 @@
       "Wind1808"
     ]
   },
-  "Glossary/Index": {
-    "modified": "2019-01-16T21:36:54.645Z",
-    "contributors": [
-      "mfuji09",
-      "x2357"
-    ]
-  },
   "Glossary/IndexedDB": {
     "modified": "2019-03-18T21:40:55.276Z",
     "contributors": [
@@ -5140,12 +5126,6 @@
       "karaage-kun"
     ]
   },
-  "Learn/Index": {
-    "modified": "2020-07-16T22:33:38.849Z",
-    "contributors": [
-      "silverskyvicto"
-    ]
-  },
   "Learn/JavaScript": {
     "modified": "2020-12-12T21:01:57.465Z",
     "contributors": [
@@ -7517,12 +7497,6 @@
       "kyokutyo"
     ]
   },
-  "Mozilla/Add-ons/WebExtensions/Index": {
-    "modified": "2020-03-07T04:25:12.950Z",
-    "contributors": [
-      "mfuji09"
-    ]
-  },
   "Mozilla/Add-ons/WebExtensions/Interact_with_the_clipboard": {
     "modified": "2019-05-20T05:14:06.954Z",
     "contributors": [
@@ -9230,13 +9204,6 @@
       "silverskyvicto"
     ]
   },
-  "Tools/Index": {
-    "modified": "2020-07-16T22:36:05.417Z",
-    "contributors": [
-      "wbamberg",
-      "Marsf"
-    ]
-  },
   "Tools/JSON_viewer": {
     "modified": "2020-07-16T22:36:31.583Z",
     "contributors": [
@@ -14440,13 +14407,13 @@
       "k-kuwahara"
     ]
   },
-  "Web/API/EventSource/onerror": {
+  "Web/API/EventSource/error_event": {
     "modified": "2020-10-15T22:22:24.575Z",
     "contributors": [
       "k-kuwahara"
     ]
   },
-  "Web/API/EventSource/onmessage": {
+  "Web/API/EventSource/message_event": {
     "modified": "2020-10-15T22:22:24.577Z",
     "contributors": [
       "k-kuwahara"
@@ -17951,22 +17918,22 @@
       "ethertank"
     ]
   },
-  "Web/API/MediaQueryList/matches": {
-    "modified": "2020-10-15T21:59:32.651Z",
+  "Web/API/MediaQueryList/change_event": {
+    "modified": "2020-10-15T21:59:30.222Z",
     "contributors": [
       "mfuji09",
       "Marsf"
     ]
   },
-  "Web/API/MediaQueryList/media": {
-    "modified": "2020-10-15T21:59:28.975Z",
+  "Web/API/MediaQueryList/matches": {
+    "modified": "2020-10-15T21:59:32.651Z",
     "contributors": [
       "mfuji09",
       "Marsf"
     ]
   },
-  "Web/API/MediaQueryList/onchange": {
-    "modified": "2020-10-15T21:59:30.222Z",
+  "Web/API/MediaQueryList/media": {
+    "modified": "2020-10-15T21:59:28.975Z",
     "contributors": [
       "mfuji09",
       "Marsf"
@@ -26493,12 +26460,6 @@
       "Marsf"
     ]
   },
-  "Web/Accessibility/Index": {
-    "modified": "2019-03-23T22:41:12.085Z",
-    "contributors": [
-      "Marsf"
-    ]
-  },
   "Web/Accessibility/Keyboard-navigable_JavaScript_widgets": {
     "modified": "2019-09-04T08:46:02.292Z",
     "contributors": [
@@ -33354,14 +33315,6 @@
       "Wind1808"
     ]
   },
-  "Web/Guide/Index": {
-    "modified": "2020-12-07T13:42:04.312Z",
-    "contributors": [
-      "peterbe",
-      "mfuji09",
-      "silverskyvicto"
-    ]
-  },
   "Web/Guide/Introduction_to_Web_development": {
     "modified": "2020-05-04T12:39:54.645Z",
     "contributors": [
@@ -35214,13 +35167,6 @@
       "eltociear"
     ]
   },
-  "Web/HTML/Index": {
-    "modified": "2020-09-19T11:13:50.506Z",
-    "contributors": [
-      "mfuji09",
-      "Marsf"
-    ]
-  },
   "Web/HTML/Inline_elements": {
     "modified": "2019-04-15T20:58:44.936Z",
     "contributors": [
@@ -36521,12 +36467,6 @@
       "kurimaru"
     ]
   },
-  "Web/HTTP/Index": {
-    "modified": "2019-03-18T21:35:45.067Z",
-    "contributors": [
-      "mfuji09"
-    ]
-  },
   "Web/HTTP/Link_prefetching_FAQ": {
     "modified": "2020-01-12T13:11:34.893Z",
     "contributors": [
@@ -46124,12 +46064,6 @@
       "cosmology233"
     ]
   },
-  "Web/MathML/Index": {
-    "modified": "2019-01-16T21:55:31.944Z",
-    "contributors": [
-      "Marsf"
-    ]
-  },
   "Web/Media": {
     "modified": "2020-10-24T14:12:13.318Z",
     "contributors": [
@@ -46858,12 +46792,6 @@
       "teoli"
     ]
   },
-  "Web/SVG/Index": {
-    "modified": "2019-01-16T21:55:52.943Z",
-    "contributors": [
-      "Marsf"
-    ]
-  },
   "Web/SVG/Namespaces_Crash_Course": {
     "modified": "2019-03-23T23:49:34.244Z",
     "contributors": [
@@ -47714,13 +47642,6 @@
       "silverskyvicto"
     ]
   },
-  "Web/XPath/Index": {
-    "modified": "2019-03-30T15:46:42.224Z",
-    "contributors": [
-      "silverskyvicto",
-      "ExE-Boss"
-    ]
-  },
   "Web/XPath/Introduction_to_using_XPath_in_JavaScript": {
     "modified": "2019-03-23T23:54:12.896Z",
     "contributors": [
@@ -48019,13 +47940,6 @@
       "silverskyvicto"
     ]
   },
-  "Web/XSLT/Index": {
-    "modified": "2019-03-18T20:50:34.547Z",
-    "contributors": [
-      "mfuji09",
-      "silverskyvicto"
-    ]
-  },
   "Web/XSLT/PI_Parameters": {
     "modified": "2019-03-18T20:50:34.245Z",
     "contributors": [
@@ -48198,12 +48112,6 @@
       "ukyo"
     ]
   },
-  "WebAssembly/Index": {
-    "modified": "2019-03-18T21:24:03.527Z",
-    "contributors": [
-      "silverskyvicto"
-    ]
-  },
   "WebAssembly/Loading_and_running": {
     "modified": "2019-03-23T22:13:00.551Z",
     "contributors": [
@@ -48256,12 +48164,32 @@
       "silverskyvicto"
     ]
   },
+  "conflicting/Games": {
+    "modified": "2019-01-16T21:55:46.834Z",
+    "contributors": [
+      "wbamberg",
+      "Marsf"
+    ]
+  },
+  "conflicting/Glossary": {
+    "modified": "2019-01-16T21:36:54.645Z",
+    "contributors": [
+      "mfuji09",
+      "x2357"
+    ]
+  },
   "conflicting/Glossary/Plugin": {
     "modified": "2019-03-18T21:35:38.258Z",
     "contributors": [
       "momdo"
     ]
   },
+  "conflicting/Learn": {
+    "modified": "2020-07-16T22:33:38.849Z",
+    "contributors": [
+      "silverskyvicto"
+    ]
+  },
   "conflicting/Learn/JavaScript/Objects/Classes_in_JavaScript": {
     "modified": "2020-12-06T14:17:48.495Z",
     "contributors": [
@@ -48285,6 +48213,19 @@
       "Uemmra3"
     ]
   },
+  "conflicting/Mozilla/Add-ons/WebExtensions": {
+    "modified": "2020-03-07T04:25:12.950Z",
+    "contributors": [
+      "mfuji09"
+    ]
+  },
+  "conflicting/Tools": {
+    "modified": "2020-07-16T22:36:05.417Z",
+    "contributors": [
+      "wbamberg",
+      "Marsf"
+    ]
+  },
   "conflicting/Web/API/AudioTrackList/addtrack_event": {
     "modified": "2020-10-15T22:19:07.769Z",
     "contributors": [
@@ -48541,6 +48482,12 @@
       "Wind1808"
     ]
   },
+  "conflicting/Web/Accessibility": {
+    "modified": "2019-03-23T22:41:12.085Z",
+    "contributors": [
+      "Marsf"
+    ]
+  },
   "conflicting/Web/Accessibility/ARIA/Roles/alert_role": {
     "modified": "2019-03-18T21:24:32.583Z",
     "contributors": [
@@ -48584,6 +48531,27 @@
       "mfuji09"
     ]
   },
+  "conflicting/Web/Guide": {
+    "modified": "2020-12-07T13:42:04.312Z",
+    "contributors": [
+      "peterbe",
+      "mfuji09",
+      "silverskyvicto"
+    ]
+  },
+  "conflicting/Web/HTML": {
+    "modified": "2020-09-19T11:13:50.506Z",
+    "contributors": [
+      "mfuji09",
+      "Marsf"
+    ]
+  },
+  "conflicting/Web/HTTP": {
+    "modified": "2019-03-18T21:35:45.067Z",
+    "contributors": [
+      "mfuji09"
+    ]
+  },
   "conflicting/Web/HTTP/Headers/Feature-Policy/xr-spatial-tracking": {
     "modified": "2020-08-12T12:42:41.854Z",
     "contributors": [
@@ -48591,12 +48559,44 @@
       "tamura4278"
     ]
   },
+  "conflicting/Web/MathML": {
+    "modified": "2019-01-16T21:55:31.944Z",
+    "contributors": [
+      "Marsf"
+    ]
+  },
+  "conflicting/Web/SVG": {
+    "modified": "2019-01-16T21:55:52.943Z",
+    "contributors": [
+      "Marsf"
+    ]
+  },
   "conflicting/Web/Web_Components": {
     "modified": "2020-10-15T22:23:11.378Z",
     "contributors": [
       "reodog"
     ]
   },
+  "conflicting/Web/XPath": {
+    "modified": "2019-03-30T15:46:42.224Z",
+    "contributors": [
+      "silverskyvicto",
+      "ExE-Boss"
+    ]
+  },
+  "conflicting/Web/XSLT": {
+    "modified": "2019-03-18T20:50:34.547Z",
+    "contributors": [
+      "mfuji09",
+      "silverskyvicto"
+    ]
+  },
+  "conflicting/WebAssembly": {
+    "modified": "2019-03-18T21:24:03.527Z",
+    "contributors": [
+      "silverskyvicto"
+    ]
+  },
   "orphaned/Building_a_Mozilla_Distribution": {
     "modified": "2019-03-23T23:49:07.062Z",
     "contributors": [
diff --git a/files/ja/games/index/index.html b/files/ja/conflicting/games/index.html
index 6879d6d0ef..f0d8b472be 100644
--- a/files/ja/games/index/index.html
+++ b/files/ja/conflicting/games/index.html
@@ -1,10 +1,11 @@
 ---
 title: ゲーム開発関連ドキュメントの索引
-slug: Games/Index
+slug: conflicting/Games
 tags:
   - Games
   - Index
 translation_of: Games/Index
+original_slug: Games/Index
 ---
 <div>{{GamesSidebar}}</div><div>{{IncludeSubnav("/ja/docs/Games")}}</div>
 
diff --git a/files/ja/glossary/index/index.html b/files/ja/conflicting/glossary/index.html
index 57b963f40b..acdc1de061 100644
--- a/files/ja/glossary/index/index.html
+++ b/files/ja/conflicting/glossary/index.html
@@ -1,11 +1,12 @@
 ---
 title: 索引
-slug: Glossary/Index
+slug: conflicting/Glossary
 tags:
   - Glossary
   - Index
   - MDN Meta
   - Navigation
 translation_of: Glossary/Index
+original_slug: Glossary/Index
 ---
 <p>{{Index("/ja/docs/Glossary")}}</p>
diff --git a/files/ja/learn/index/index.html b/files/ja/conflicting/learn/index.html
index 0c842ca444..9c78d9dcac 100644
--- a/files/ja/learn/index/index.html
+++ b/files/ja/conflicting/learn/index.html
@@ -1,10 +1,11 @@
 ---
 title: インデックス
-slug: Learn/Index
+slug: conflicting/Learn
 tags:
   - MDN Meta
   - インデックス
   - 学習
 translation_of: Learn/Index
+original_slug: Learn/Index
 ---
 <p>{{Index("/ja/docs/Learn")}}</p>
diff --git a/files/ja/mozilla/add-ons/webextensions/index/index.html b/files/ja/conflicting/mozilla/add-ons/webextensions/index.html
index ec4a9066f7..06b5e82b73 100644
--- a/files/ja/mozilla/add-ons/webextensions/index/index.html
+++ b/files/ja/conflicting/mozilla/add-ons/webextensions/index.html
@@ -1,6 +1,6 @@
 ---
 title: 索引
-slug: Mozilla/Add-ons/WebExtensions/Index
+slug: conflicting/Mozilla/Add-ons/WebExtensions
 tags:
   - Add-ons
   - Index
@@ -8,6 +8,7 @@ tags:
   - アドオン
   - 索引
 translation_of: Mozilla/Add-ons/WebExtensions/Index
+original_slug: Mozilla/Add-ons/WebExtensions/Index
 ---
 <div>{{AddonSidebar}}</div>
 
diff --git a/files/ja/tools/index/index.html b/files/ja/conflicting/tools/index.html
index 092c03076e..1d1bad64e0 100644
--- a/files/ja/tools/index/index.html
+++ b/files/ja/conflicting/tools/index.html
@@ -1,9 +1,10 @@
 ---
 title: 開発ツール関連ドキュメントの索引
-slug: Tools/Index
+slug: conflicting/Tools
 tags:
   - Index
   - Tools
 translation_of: Tools/Index
+original_slug: Tools/Index
 ---
 <div>{{ToolsSidebar}}</div><p>{{Index("/ja/docs/Tools")}}</p>
diff --git a/files/ja/web/accessibility/index/index.html b/files/ja/conflicting/web/accessibility/index.html
index 3e2035d320..93a56991bc 100644
--- a/files/ja/web/accessibility/index/index.html
+++ b/files/ja/conflicting/web/accessibility/index.html
@@ -1,10 +1,11 @@
 ---
 title: アクセシビリティ関連ドキュメントの索引
-slug: Web/Accessibility/Index
+slug: conflicting/Web/Accessibility
 tags:
   - Accessibility
   - Index
 translation_of: Web/Accessibility/Index
+original_slug: Web/Accessibility/Index
 ---
 <p class="summary"><span class="seoSummary">このドキュメントは、Mozilla Developer Network サイト上の、すべてのアクセシビリティの記事へのリンクの一覧を提供します。</span></p>
 
diff --git a/files/ja/web/guide/index/index.html b/files/ja/conflicting/web/guide/index.html
index 9f0d683123..a5d6cd1488 100644
--- a/files/ja/web/guide/index/index.html
+++ b/files/ja/conflicting/web/guide/index.html
@@ -1,10 +1,11 @@
 ---
 title: 索引
-slug: Web/Guide/Index
+slug: conflicting/Web/Guide
 tags:
   - Index
   - ガイド
 translation_of: Web/Guide/Index
+original_slug: Web/Guide/Index
 ---
 <div>{{MDNSidebar}}{{IncludeSubnav("/ja/docs/MDN")}}</div>
 
diff --git a/files/ja/web/html/index/index.html b/files/ja/conflicting/web/html/index.html
index eadaa1c4d0..5f9ada989f 100644
--- a/files/ja/web/html/index/index.html
+++ b/files/ja/conflicting/web/html/index.html
@@ -1,10 +1,11 @@
 ---
 title: HTML ドキュメントの索引
-slug: Web/HTML/Index
+slug: conflicting/Web/HTML
 tags:
   - HTML
   - Index
   - MDN Meta
 translation_of: Web/HTML/Index
+original_slug: Web/HTML/Index
 ---
 <p>{{Index("/ja/docs/Web/HTML")}} <span class="seoSummary">利用可能なすべての HTML に関する文書の包括的な索引リストです。</span></p>
diff --git a/files/ja/web/http/index/index.html b/files/ja/conflicting/web/http/index.html
index acbf54eb38..aa400e86e2 100644
--- a/files/ja/web/http/index/index.html
+++ b/files/ja/conflicting/web/http/index.html
@@ -1,10 +1,11 @@
 ---
 title: 索引
-slug: Web/HTTP/Index
+slug: conflicting/Web/HTTP
 tags:
   - HTTP
   - Index
 translation_of: Web/HTTP/Index
+original_slug: Web/HTTP/Index
 ---
 <div>{{HTTPSidebar}}</div>
 
diff --git a/files/ja/web/mathml/index/index.html b/files/ja/conflicting/web/mathml/index.html
index a32dfa6b75..06d9c020b2 100644
--- a/files/ja/web/mathml/index/index.html
+++ b/files/ja/conflicting/web/mathml/index.html
@@ -1,9 +1,10 @@
 ---
 title: MathML 関連ドキュメントの索引
-slug: Web/MathML/Index
+slug: conflicting/Web/MathML
 tags:
   - Index
   - MathML
 translation_of: Web/MathML/Index
+original_slug: Web/MathML/Index
 ---
 <p>{{Index("/ja/docs/Web/MathML")}}</p>
diff --git a/files/ja/web/svg/index/index.html b/files/ja/conflicting/web/svg/index.html
index 84bc4161f7..e0b02812c4 100644
--- a/files/ja/web/svg/index/index.html
+++ b/files/ja/conflicting/web/svg/index.html
@@ -1,9 +1,10 @@
 ---
 title: SVG 関連ドキュメントの索引
-slug: Web/SVG/Index
+slug: conflicting/Web/SVG
 tags:
   - Index
   - SVG
 translation_of: Web/SVG/Index
+original_slug: Web/SVG/Index
 ---
 <p>{{Index("/ja/docs/Web/SVG")}}</p>
diff --git a/files/ja/web/xpath/index/index.html b/files/ja/conflicting/web/xpath/index.html
index e90e8fb344..dbe896db2c 100644
--- a/files/ja/web/xpath/index/index.html
+++ b/files/ja/conflicting/web/xpath/index.html
@@ -1,12 +1,13 @@
 ---
 title: Index
-slug: Web/XPath/Index
+slug: conflicting/Web/XPath
 tags:
   - Index
   - Reference
   - XPath
   - XSLT
 translation_of: Web/XPath/Index
+original_slug: Web/XPath/Index
 ---
 <p>{{Index("/ja/docs/Web/XPath")}}</p>
 
diff --git a/files/ja/web/xslt/index/index.html b/files/ja/conflicting/web/xslt/index.html
index 91bb5362a3..6cec119901 100644
--- a/files/ja/web/xslt/index/index.html
+++ b/files/ja/conflicting/web/xslt/index.html
@@ -1,11 +1,12 @@
 ---
 title: Index
-slug: Web/XSLT/Index
+slug: conflicting/Web/XSLT
 tags:
   - Index
   - XSLT
   - リファレンス
 translation_of: Web/XSLT/Index
+original_slug: Web/XSLT/Index
 ---
 <p>{{XSLTRef}}{{QuickLinksWithSubpages("/ja/docs/Web/XSLT")}}</p>
 
diff --git a/files/ja/webassembly/index/index.html b/files/ja/conflicting/webassembly/index.html
index dd2f92d0e9..cb88ce4a63 100644
--- a/files/ja/webassembly/index/index.html
+++ b/files/ja/conflicting/webassembly/index.html
@@ -1,10 +1,11 @@
 ---
 title: Index
-slug: WebAssembly/Index
+slug: conflicting/WebAssembly
 tags:
   - Index
   - WebAssembly
 translation_of: WebAssembly/Index
+original_slug: WebAssembly/Index
 ---
 <div>{{WebAssemblySidebar}}</div>
 
diff --git a/files/ja/web/api/eventsource/onerror/index.html b/files/ja/web/api/eventsource/error_event/index.html
index 1629027780..31df170d43 100644
--- a/files/ja/web/api/eventsource/onerror/index.html
+++ b/files/ja/web/api/eventsource/error_event/index.html
@@ -1,6 +1,6 @@
 ---
 title: EventSource.onerror
-slug: Web/API/EventSource/onerror
+slug: Web/API/EventSource/error_event
 tags:
   - API
   - EventSource
@@ -9,6 +9,7 @@ tags:
   - プロパティ
   - リファレンス
 translation_of: Web/API/EventSource/onerror
+original_slug: Web/API/EventSource/onerror
 ---
 <div>{{APIRef('WebSockets API')}}</div>
 
diff --git a/files/ja/web/api/eventsource/onmessage/index.html b/files/ja/web/api/eventsource/message_event/index.html
index 0b0f8c7c6b..6b35ddf7d2 100644
--- a/files/ja/web/api/eventsource/onmessage/index.html
+++ b/files/ja/web/api/eventsource/message_event/index.html
@@ -1,6 +1,6 @@
 ---
 title: EventSource.onmessage
-slug: Web/API/EventSource/onmessage
+slug: Web/API/EventSource/message_event
 tags:
   - API
   - EventSource
@@ -10,6 +10,7 @@ tags:
   - プロパティ
   - リファレンス
 translation_of: Web/API/EventSource/onmessage
+original_slug: Web/API/EventSource/onmessage
 ---
 <div>{{APIRef('WebSockets API')}}</div>
 
diff --git a/files/ja/web/api/mediaquerylist/onchange/index.html b/files/ja/web/api/mediaquerylist/change_event/index.html
index 5539cdd3c7..388dad93d3 100644
--- a/files/ja/web/api/mediaquerylist/onchange/index.html
+++ b/files/ja/web/api/mediaquerylist/change_event/index.html
@@ -1,6 +1,6 @@
 ---
 title: MediaQueryList.onchange
-slug: Web/API/MediaQueryList/onchange
+slug: Web/API/MediaQueryList/change_event
 tags:
   - API
   - CSSOM View
@@ -13,6 +13,7 @@ tags:
   - プロパティ
   - メディアクエリ
 translation_of: Web/API/MediaQueryList/onchange
+original_slug: Web/API/MediaQueryList/onchange
 ---
 <p>{{APIRef("CSSOM")}}</p>