diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index afc558c4f..9b09a85f2 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -5,82 +5,86 @@
   "service": "web",
   "workspaceFolder": "/app",
   "shutdownAction": "stopCompose",
-  "extensions": [
-    "csstools.postcss",
-    "dbaeumer.vscode-eslint",
-    "esbenp.prettier-vscode",
-    "formulahendry.auto-rename-tag",
-    "naumovs.color-highlight",
-    "sissel.shopify-liquid",
-    "stkb.rewrap",
-    "stylelint.vscode-stylelint",
-    "syler.sass-indented",
-    "tyriar.sort-lines",
-    "xabikos.javascriptsnippets"
-  ],
-  "settings": {
-    "terminal.integrated.profiles.linux": {
-      "bash": {
-        "path": "/bin/bash"
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "csstools.postcss",
+        "dbaeumer.vscode-eslint",
+        "esbenp.prettier-vscode",
+        "formulahendry.auto-rename-tag",
+        "naumovs.color-highlight",
+        "sissel.shopify-liquid",
+        "stkb.rewrap",
+        "stylelint.vscode-stylelint",
+        "syler.sass-indented",
+        "tyriar.sort-lines",
+        "xabikos.javascriptsnippets"
+      ],
+      "settings": {
+        "terminal.integrated.profiles.linux": {
+          "bash": {
+            "path": "/bin/bash"
+          }
+        },
+        "terminal.integrated.defaultProfile.linux": "bash",
+        "editor.bracketPairColorization.enabled": true,
+        "editor.codeActionsOnSave": {
+          "source.fixAll.eslint": true
+        },
+        "editor.defaultFormatter": "esbenp.prettier-vscode",
+        "editor.formatOnSave": true,
+        "editor.tabSize": 2,
+        "eslint.validate": ["javascript", "typescript"],
+        "css.validate": false,
+        "less.validate": false,
+        "scss.validate": false,
+        "stylelint.validate": ["css", "scss", "less", "postcss"],
+        "files.insertFinalNewline": true,
+        "files.trimFinalNewlines": true,
+        "files.trimTrailingWhitespace": true,
+        "javascript.suggestionActions.enabled": false,
+        "typescript.preferences.quoteStyle": "single",
+        "typescript.tsdk": "node_modules/typescript/lib",
+        "[javascript]": {
+          "editor.rulers": [80]
+        },
+        "[markdown]": {
+          "editor.rulers": [80]
+        },
+        "[typescript]": {
+          "editor.rulers": [80]
+        },
+        "[scss]": {
+          "editor.rulers": [80],
+          "editor.codeActionsOnSave": {
+            "source.fixAll.stylelint": true
+          }
+        },
+        "files.exclude": {
+          "**/.git": true,
+          "**/.DS_Store": true,
+          ".coverage": true,
+          "coverage": true,
+          "htmlcov": true,
+          ".tags": true,
+          ".cache": true,
+          ".vscode": true,
+          "collected-assets": true,
+          "staticfiles": true,
+          "**/*.egg-info": true
+        },
+        "search.exclude": {
+          "**/*.css.map": true,
+          "**/*.js.map": true,
+          "**/node_modules": true,
+          ".yarn/": true,
+          "_site/": true,
+          "assets/dist/": true,
+          "yarn-debug.log": true,
+          "yarn-error.log": true,
+          "yarn.lock": true
+        }
       }
-    },
-    "terminal.integrated.defaultProfile.linux": "bash",
-    "editor.bracketPairColorization.enabled": true,
-    "editor.codeActionsOnSave": {
-      "source.fixAll.eslint": true
-    },
-    "editor.defaultFormatter": "esbenp.prettier-vscode",
-    "editor.formatOnSave": true,
-    "editor.tabSize": 2,
-    "eslint.validate": ["javascript", "typescript"],
-    "css.validate": false,
-    "less.validate": false,
-    "scss.validate": false,
-    "stylelint.validate": ["css", "scss", "less", "postcss"],
-    "files.insertFinalNewline": true,
-    "files.trimFinalNewlines": true,
-    "files.trimTrailingWhitespace": true,
-    "javascript.suggestionActions.enabled": false,
-    "typescript.preferences.quoteStyle": "single",
-    "typescript.tsdk": "node_modules/typescript/lib",
-    "[javascript]": {
-      "editor.rulers": [80]
-    },
-    "[markdown]": {
-      "editor.rulers": [80]
-    },
-    "[typescript]": {
-      "editor.rulers": [80]
-    },
-    "[scss]": {
-      "editor.rulers": [80],
-      "editor.codeActionsOnSave": {
-        "source.fixAll.stylelint": true
-      }
-    },
-    "files.exclude": {
-      "**/.git": true,
-      "**/.DS_Store": true,
-      ".coverage": true,
-      "coverage": true,
-      "htmlcov": true,
-      ".tags": true,
-      ".cache": true,
-      ".vscode": true,
-      "collected-assets": true,
-      "staticfiles": true,
-      "**/*.egg-info": true
-    },
-    "search.exclude": {
-      "**/*.css.map": true,
-      "**/*.js.map": true,
-      "**/node_modules": true,
-      ".yarn/": true,
-      "_site/": true,
-      "assets/dist/": true,
-      "yarn-debug.log": true,
-      "yarn-error.log": true,
-      "yarn.lock": true
     }
   }
 }
diff --git a/eleventy.config.js b/eleventy.config.js
index c38ed5a9b..5730b5b6b 100644
--- a/eleventy.config.js
+++ b/eleventy.config.js
@@ -24,7 +24,6 @@ module.exports = (eleventyConfig) => {
   eleventyConfig.addPassthroughCopy('source/assets/img');
   eleventyConfig.addPassthroughCopy('source/favicon.ico');
   eleventyConfig.addPassthroughCopy('source/icon.png');
-  eleventyConfig.addPassthroughCopy('source/_redirects');
   eleventyConfig.addPassthroughCopy('source/browserconfig.xml');
   eleventyConfig.addPassthroughCopy('source/tile.png');
   eleventyConfig.addPassthroughCopy('source/tile-wide.png');
diff --git a/source/_data/redirects.yml b/source/_data/redirects.yml
new file mode 100644
index 000000000..a0ede972d
--- /dev/null
+++ b/source/_data/redirects.yml
@@ -0,0 +1,30 @@
+- from:
+    - /d/random-with-units
+    - /documentation/breaking-changes/random-with-units
+    - /d/color-units
+    - /documentation/breaking-changes/color-units
+  to: /documentation/breaking-changes/function-units
+- from:
+    - /docs/yardoc/file.SASS_REFERENCE.html
+    - /documentation/file.SASS_REFERENCE.html
+  to: /documentation
+- from:
+    - /docs/yardoc/file.SASS_CHANGELOG.html
+    - /documentation/file.SASS_CHANGELOG.html
+  to: https://github.com/sass/dart-sass/blob/main/CHANGELOG.md
+- from:
+    - /docs/yardoc/file.INDENTED_SYNTAX.html
+    - /documentation/file.INDENTED_SYNTAX.html
+    - /docs/yardoc/file.SCSS_FOR_SASS_USERS.html
+    - /documentation/file.SCSS_FOR_SASS_USERS.html
+  to: /documentation/syntax
+- from:
+    - /docs/yardoc/Sass/Script/Functions.html
+    - /documentation/Sass/Script/Functions.html
+    - /docs/yardoc/functions.html
+    - /documentation/functions.html
+  to: /documentation/modules
+- from:
+    - /docs/yardoc/functions/css.html
+    - /documentation/functions/css.html
+  to: /documentation/at-rules/function/#plain-css-functions
diff --git a/source/_redirects b/source/_redirects
deleted file mode 100644
index 1b47a80fc..000000000
--- a/source/_redirects
+++ /dev/null
@@ -1,17 +0,0 @@
-/feed                 /feed.xml                                     200
-/sitemap              /sitemap.xml                                  200
-/tutorial             /guide
-/download             /install
-/try                  https://www.sassmeister.com
-/about                /
-
-/blog/posts/560719    /blog/dropping-support-for-old-ruby-versions
-/blog/posts/1305238   /blog/dart-sass-is-on-chocolatey
-/blog/posts/1404451   /blog/sass-and-browser-compatibility
-/blog/posts/1909151   /blog/dart-sass-is-in-beta
-/blog/posts/7081811   /blog/ruby-sass-is-deprecated
-
-/d/random-with-units  /documentation/breaking-changes/function-units
-/documentation/breaking-changes/random-with-units   /documentation/breaking-changes/function-units
-/d/color-units        /documentation/breaking-changes/function-units
-/documentation/breaking-changes/color-units         /documentation/breaking-changes/function-units
diff --git a/source/_redirects.liquid b/source/_redirects.liquid
new file mode 100644
index 000000000..b22a7a23d
--- /dev/null
+++ b/source/_redirects.liquid
@@ -0,0 +1,35 @@
+---
+permalink: '/_redirects'
+eleventyExcludeFromCollections: true
+---
+/feed                 /feed.xml                                     200
+/sitemap              /sitemap.xml                                  200
+/tutorial             /guide
+/download             /install
+/try                  https://www.sassmeister.com
+/about                /
+
+/blog/posts/560719    /blog/dropping-support-for-old-ruby-versions
+/blog/posts/1305238   /blog/dart-sass-is-on-chocolatey
+/blog/posts/1404451   /blog/sass-and-browser-compatibility
+/blog/posts/1909151   /blog/dart-sass-is-in-beta
+/blog/posts/7081811   /blog/ruby-sass-is-deprecated
+
+{% for r in redirects -%}
+{%- for from in r.from %}
+{%- for to in r.to %}
+{{ from }}            {{ to }}
+{%- endfor -%}
+{%- endfor -%}
+{%- endfor %}
+
+{%- assign mods = 'color list map math meta selector string' | split: ' ' -%}
+{%- for mod in mods %}
+/docs/yardoc/functions/{{ mod }}.html     /documentation/modules/{{ mod }}/
+/documentation/functions/{{ mod }}.html   /documentation/modules/{{ mod }}/
+{%- endfor -%}
+
+{%- assign breaking = 'bogus-combinators css-vars duplicate-var-flags extend-compound function-units media-logic moz-document slash-div strict-unary' | split: ' ' -%}
+{%- for b in breaking %}
+/d/{{ b }}.html         /documentation/breaking-changes/{{ b }}/
+{%- endfor -%}
diff --git a/source/assets/js/components/redirect.ts b/source/assets/js/components/redirect.ts
index 4784dd65e..b035f2e85 100644
--- a/source/assets/js/components/redirect.ts
+++ b/source/assets/js/components/redirect.ts
@@ -1,410 +1,350 @@
 // The old reference URL redirects to /documentation/, but it may have an anchor
 // that refers to a more specific piece of documentation. If so, forward the
 // user to that documentation.
-if (window.location.hash) {
-  if (window.location.pathname == '/documentation') {
-    const redirects: Record<string, string> = {
-      '#syntax': '/documentation/syntax',
-      '#using_sass': '/install',
-      '#rackrailsmerb_plugin': 'https://github.com/rails/sass-rails',
-      '#caching': '/ruby-sass',
-      '#options': '/ruby-sass',
-      '#syntax_selection': '/documentation/syntax',
-      '#encodings': '/documentation/syntax/parsing#input-encoding',
-      '#css_extensions': '/documentation/style-rules',
-      '#nested_rules': '/documentation/style-rules#nesting',
-      '#parent-selector': '/documentation/style-rules/parent-selector',
-      '#nested_properties': '/documentation/style-rules/declarations#nesting',
-      '#placeholder_selectors_foo':
-        '/documentation/style-rules/placeholder-selectors',
-      '#comments': '/documentation/syntax/comments',
-      '#sassscript': '/documentation/syntax/structure#expressions',
-      '#interactive_shell': '/documentation/cli/dart-sass#interactive',
-      '#variables_': '/documentation/variables',
-      '#data_types': '/documentation/values',
-      '#strings': '/documentation/values/strings',
-      '#lists': '/documentation/values/lists',
-      '#bracketed_lists': '/documentation/values/lists',
-      '#maps': '/documentation/values/maps',
-      '#colors': '/documentation/values/colors',
-      '#first_class_functions': '/documentation/values/functions',
-      '#operations': '/documentation/operators',
-      '#number_operations': '/documentation/operators/numeric',
-      '#division-and-slash':
-        '/documentation/operators/numeric#slash-separated-values',
-      '#subtraction': '/documentation/operators/numeric#unary-operators',
-      '#color_operations': '/documentation/operators/color',
-      '#string_operations': '/documentation/operators/string',
-      '#boolean_operations': '/documentation/operators/boolean',
-      '#list_operations': '/documentation/modules/list',
-      '#parentheses': '/documentation/operators#parentheses',
-      '#functions': '/documentation/modules',
-      '#keyword_arguments':
-        '/documentation/at-rules/function#keyword-arguments',
-      '#interpolation_': '/documentation/interpolation',
-      '#parent-script':
-        '/documentation/style-rules/parent-selector#in-sassscript',
-      '#variable_defaults_default': '/documentation/variables#default-values',
-      '#directives': '/documentation/at-rules',
-      '#import': '/documentation/at-rules/import',
-      '#partials': '/documentation/at-rules/import#partials',
-      '#index_files': '/documentation/at-rules/import#index-files',
-      '#nested_import': '/documentation/at-rules/import#nesting',
-      '#media': '/documentation/at-rules/css#media',
-      '#extend': '/documentation/at-rules/extend',
-      '#how_it_works': '/documentation/at-rules/extend#how-it-works',
-      '#multiple_extends': '/documentation/at-rules/extend',
-      '#chaining_extends': '/documentation/at-rules/extend',
-      '#selector_sequences':
-        '/documentation/at-rules/extend#disallowed-selectors',
-      '#merging_selector_sequences':
-        '/documentation/at-rules/extend#how-it-works',
-      '#placeholders': '/documentation/at-rules/extend#placeholder-selectors',
-      '#the_optional_flag':
-        '/documentation/at-rules/extend#mandatory-and-optional-extends',
-      '#extend_in_directives': '/documentation/at-rules/extend#extend-in-media',
-      '#extending_compound_selectors':
-        '/documentation/at-rules/extend#disallowed-selectors',
-      '#at-root': '/documentation/at-rules/at-root',
-      '#at-root_without__and_at-root_with_':
-        '/documentation/at-rules/at-root#beyond-style-rules',
-      '#debug': '/documentation/at-rules/debug',
-      '#warn': '/documentation/at-rules/warn',
-      '#error': '/documentation/at-rules/error',
-      '#control_directives__expressions': '/documentation/at-rules/control',
-      '#if': '/documentation/at-rules/control/if',
-      '#for': '/documentation/at-rules/control/for',
-      '#each': '/documentation/at-rules/control/each',
-      '#each-multi-assign':
-        '/documentation/at-rules/control/each#destructuring',
-      '#while': '/documentation/at-rules/control/while',
-      '#mixins': '/documentation/at-rules/mixin',
-      '#defining_a_mixin': '/documentation/at-rules/mixin',
-      '#including_a_mixin': '/documentation/at-rules/mixin',
-      '#mixin-arguments': '/documentation/at-rules/mixin#arguments',
-      '#trailing_commas': '/documentation/at-rules/mixin#arguments',
-      '#variable_arguments':
-        '/documentation/at-rules/mixin#taking-arbitrary-arguments',
-      '#mixin-content': '/documentation/at-rules/mixin#content-blocks',
-      '#variable_scope_and_content_blocks':
-        '/documentation/at-rules/mixin#content-blocks',
-      '#function_directives': '/documentation/at-rules/function',
-      '#output_style': '/documentation/cli/dart-sass#style',
-      '#expanded': '/documentation/cli/dart-sass#style',
-      '#compressed': '/documentation/cli/dart-sass#style',
-      '#nested': '/documentation/cli/ruby-sass#style',
-      '#compact': '/documentation/cli/ruby-sass#style',
-      '#extending_sass': '/documentation/js-api',
-      '#defining_custom_sass_functions':
-        '/documentation/js-api/interfaces/LegacySharedOptions#importer',
-      '#cache_stores': '/ruby-sass',
-      '#custom_importers':
-        '/documentation/js-api/interfaces/LegacySharedOptions#functions',
-    };
+const redirects: Record<string, Record<string, string>> = {
+  '/documentation/': {
+    '#syntax': '/documentation/syntax',
+    '#using_sass': '/install',
+    '#rackrailsmerb_plugin': 'https://github.com/rails/sass-rails',
+    '#caching': '/ruby-sass',
+    '#options': '/ruby-sass',
+    '#syntax_selection': '/documentation/syntax',
+    '#encodings': '/documentation/syntax/parsing#input-encoding',
+    '#css_extensions': '/documentation/style-rules',
+    '#nested_rules': '/documentation/style-rules#nesting',
+    '#parent-selector': '/documentation/style-rules/parent-selector',
+    '#nested_properties': '/documentation/style-rules/declarations#nesting',
+    '#placeholder_selectors_foo':
+      '/documentation/style-rules/placeholder-selectors',
+    '#comments': '/documentation/syntax/comments',
+    '#sassscript': '/documentation/syntax/structure#expressions',
+    '#interactive_shell': '/documentation/cli/dart-sass#interactive',
+    '#variables_': '/documentation/variables',
+    '#data_types': '/documentation/values',
+    '#strings': '/documentation/values/strings',
+    '#lists': '/documentation/values/lists',
+    '#bracketed_lists': '/documentation/values/lists',
+    '#maps': '/documentation/values/maps',
+    '#colors': '/documentation/values/colors',
+    '#first_class_functions': '/documentation/values/functions',
+    '#operations': '/documentation/operators',
+    '#number_operations': '/documentation/operators/numeric',
+    '#division-and-slash':
+      '/documentation/operators/numeric#slash-separated-values',
+    '#subtraction': '/documentation/operators/numeric#unary-operators',
+    '#color_operations': '/documentation/operators/color',
+    '#string_operations': '/documentation/operators/string',
+    '#boolean_operations': '/documentation/operators/boolean',
+    '#list_operations': '/documentation/modules/list',
+    '#parentheses': '/documentation/operators#parentheses',
+    '#functions': '/documentation/modules',
+    '#keyword_arguments': '/documentation/at-rules/function#keyword-arguments',
+    '#interpolation_': '/documentation/interpolation',
+    '#parent-script':
+      '/documentation/style-rules/parent-selector#in-sassscript',
+    '#variable_defaults_default': '/documentation/variables#default-values',
+    '#directives': '/documentation/at-rules',
+    '#import': '/documentation/at-rules/import',
+    '#partials': '/documentation/at-rules/import#partials',
+    '#index_files': '/documentation/at-rules/import#index-files',
+    '#nested_import': '/documentation/at-rules/import#nesting',
+    '#media': '/documentation/at-rules/css#media',
+    '#extend': '/documentation/at-rules/extend',
+    '#how_it_works': '/documentation/at-rules/extend#how-it-works',
+    '#multiple_extends': '/documentation/at-rules/extend',
+    '#chaining_extends': '/documentation/at-rules/extend',
+    '#selector_sequences':
+      '/documentation/at-rules/extend#disallowed-selectors',
+    '#merging_selector_sequences':
+      '/documentation/at-rules/extend#how-it-works',
+    '#placeholders': '/documentation/at-rules/extend#placeholder-selectors',
+    '#the_optional_flag':
+      '/documentation/at-rules/extend#mandatory-and-optional-extends',
+    '#extend_in_directives': '/documentation/at-rules/extend#extend-in-media',
+    '#extending_compound_selectors':
+      '/documentation/at-rules/extend#disallowed-selectors',
+    '#at-root': '/documentation/at-rules/at-root',
+    '#at-root_without__and_at-root_with_':
+      '/documentation/at-rules/at-root#beyond-style-rules',
+    '#debug': '/documentation/at-rules/debug',
+    '#warn': '/documentation/at-rules/warn',
+    '#error': '/documentation/at-rules/error',
+    '#control_directives__expressions': '/documentation/at-rules/control',
+    '#if': '/documentation/at-rules/control/if',
+    '#for': '/documentation/at-rules/control/for',
+    '#each': '/documentation/at-rules/control/each',
+    '#each-multi-assign': '/documentation/at-rules/control/each#destructuring',
+    '#while': '/documentation/at-rules/control/while',
+    '#mixins': '/documentation/at-rules/mixin',
+    '#defining_a_mixin': '/documentation/at-rules/mixin',
+    '#including_a_mixin': '/documentation/at-rules/mixin',
+    '#mixin-arguments': '/documentation/at-rules/mixin#arguments',
+    '#trailing_commas': '/documentation/at-rules/mixin#arguments',
+    '#variable_arguments':
+      '/documentation/at-rules/mixin#taking-arbitrary-arguments',
+    '#mixin-content': '/documentation/at-rules/mixin#content-blocks',
+    '#variable_scope_and_content_blocks':
+      '/documentation/at-rules/mixin#content-blocks',
+    '#function_directives': '/documentation/at-rules/function',
+    '#output_style': '/documentation/cli/dart-sass#style',
+    '#expanded': '/documentation/cli/dart-sass#style',
+    '#compressed': '/documentation/cli/dart-sass#style',
+    '#nested': '/documentation/cli/ruby-sass#style',
+    '#compact': '/documentation/cli/ruby-sass#style',
+    '#extending_sass': '/documentation/js-api',
+    '#defining_custom_sass_functions':
+      '/documentation/js-api/interfaces/LegacySharedOptions#importer',
+    '#cache_stores': '/ruby-sass',
+    '#custom_importers':
+      '/documentation/js-api/interfaces/LegacySharedOptions#functions',
+  },
+  '/documentation/modules/': {
+    '#declare-class_method': '/ruby-sass',
+    '#random_number_generator-class_method': '/ruby-sass',
+    '#random_seed=-class_method': '/ruby-sass',
+    '#signature-class_method': '/ruby-sass',
+    '#abs-instance_method': '/documentation/modules/math#abs',
+    '#adjust_color-instance_method': '/documentation/modules/color#adjust',
+    '#adjust_hue-instance_method': '/documentation/modules/color#adjust-hue',
+    '#alpha-instance_method': '/documentation/modules/color#alpha',
+    '#append-instance_method': '/documentation/modules/list#append',
+    '#blue-instance_method': '/documentation/modules/color#blue',
+    '#call-instance_method': '/documentation/modules/meta#call',
+    '#ceil-instance_method': '/documentation/modules/math#ceil',
+    '#change_color-instance_method': '/documentation/modules/color#change',
+    '#comparable-instance_method': '/documentation/modules/math#compatible',
+    '#complement-instance_method': '/documentation/modules/color#complement',
+    '#content_exists-instance_method':
+      '/documentation/modules/meta#content-exists',
+    '#darken-instance_method': '/documentation/modules/color#darken',
+    '#desaturate-instance_method': '/documentation/modules/color#desaturate',
+    '#feature_exists-instance_method':
+      '/documentation/modules/meta#feature-exists',
+    '#floor-instance_method': '/documentation/modules/math#floor',
+    '#get_function-instance_method': '/documentation/modules/meta#get-function',
+    '#global_variable_exists-instance_method':
+      '/documentation/modules/meta#global-variable-exists',
+    '#grayscale-instance_method': '/documentation/modules/color#grayscale',
+    '#green-instance_method': '/documentation/modules/color#green',
+    '#hsl-instance_method': '/documentation/modules/color#hsl',
+    '#hsla-instance_method': '/documentation/modules/color#hsla',
+    '#hue-instance_method': '/documentation/modules/color#hue',
+    '#ie_hex_str-instance_method': '/documentation/modules/color#ie-hex-str',
+    '#if-instance_method': '/documentation/#if',
+    '#index-instance_method': '/documentation/modules/list#index',
+    '#inspect-instance_method': '/documentation/modules/meta#inspect',
+    '#invert-instance_method': '/documentation/modules/color#invert',
+    '#is_bracketed-instance_method': '/documentation/modules/list#is-bracketed',
+    '#is_superselector-instance_method':
+      '/documentation/modules/selector#is-superselector',
+    '#join-instance_method': '/documentation/modules/list#join',
+    '#keywords-instance_method': '/documentation/modules/meta#keywords',
+    '#length-instance_method': '/documentation/modules/list#length',
+    '#lighten-instance_method': '/documentation/modules/color#lighten',
+    '#lightness-instance_method': '/documentation/modules/color#lightness',
+    '#list_separator-instance_method': '/documentation/modules/list#separator',
+    '#map_get-instance_method': '/documentation/modules/map#get',
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+    '#map_keys-instance_method': '/documentation/modules/map#keys',
+    '#map_merge-instance_method': '/documentation/modules/map#merge',
+    '#map_remove-instance_method': '/documentation/modules/map#remove',
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+    '#min-instance_method': '/documentation/modules/math#min',
+    '#mix-instance_method': '/documentation/modules/color#mix',
+    '#mixin_exists-instance_method': '/documentation/modules/meta#mixin-exists',
+    '#nth-instance_method': '/documentation/modules/list#nth',
+    '#opacify-instance_method': '/documentation/modules/color#opacify',
+    '#opacity-instance_method': '/documentation/modules/color#opacity',
+    '#percentage-instance_method': '/documentation/modules/math#percentage',
+    '#quote-instance_method': '/documentation/modules/string#quote',
+    '#random-instance_method': '/documentation/modules/math#random',
+    '#red-instance_method': '/documentation/modules/color#red',
+    '#rgb-instance_method': '/documentation/modules/color#rgb',
+    '#rgba-instance_method': '/documentation/modules/color#rgba',
+    '#round-instance_method': '/documentation/modules/math#round',
+    '#saturate-instance_method': '/documentation/modules/color#saturate',
+    '#saturation-instance_method': '/documentation/modules/color#saturation',
+    '#scale_color-instance_method': '/documentation/modules/color#scale',
+    '#selector_append-instance_method':
+      '/documentation/modules/selector#append',
+    '#selector_extend-instance_method':
+      '/documentation/modules/selector#extend',
+    '#selector_nest-instance_method': '/documentation/modules/selector#nest',
+    '#selector_parse-instance_method': '/documentation/modules/selector#parse',
+    '#selector_replace-instance_method':
+      '/documentation/modules/selector#replace',
+    '#selector_unify-instance_method': '/documentation/modules/selector#unify',
+    '#set-instance_method': '/documentation/modules/list#set',
+    '#simple_selectors-instance_method':
+      '/documentation/modules/selector#simple-selectors',
+    '#str_index-instance_method': '/documentation/modules/string#index',
+    '#str_insert-instance_method': '/documentation/modules/string#insert',
+    '#str_length-instance_method': '/documentation/modules/string#length',
+    '#str_slice-instance_method': '/documentation/modules/string#slice',
+    '#to_lower_case-instance_method':
+      '/documentation/modules/string#to-lower-case',
+    '#to_upper_case-instance_method':
+      '/documentation/modules/string#to-upper-case',
+    '#transparentize-instance_method':
+      '/documentation/modules/color#transparentize',
+    '#type_of-instance_method': '/documentation/modules/meta#type-of',
+    '#unique_id-instance_method': '/documentation/modules/string#unique-id',
+    '#unit-instance_method': '/documentation/modules/math#unit',
+    '#unitless-instance_method': '/documentation/modules/math#is-unitless',
+    '#unquote-instance_method': '/documentation/modules/string#unquote',
+    '#variable_exists-instance_method':
+      '/documentation/modules/meta#variable-exists',
+    '#zip-instance_method': '/documentation/modules/list#zip',
+  },
+  '/documentation/modules/color/': {
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+    '#rgba': '/documentation/modules#rgba',
+    '#hsl': '/documentation/modules#hsl',
+    '#hsla': '/documentation/modules#hsla',
+  },
+  '/documentation/modules/map/': {
+    '#keywords': '/documentation/modules/meta#keywords',
+  },
+  '/documentation/at-rules/use/': {
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+  },
+  '/documentation/syntax/special-functions/': {
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+      '/documentation/syntax/special-functions#element-progid-and-expression',
+    '#min-and-max': '/documentation/values/calculations#min-and-max',
+  },
+  '/documentation/js-api/': {
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+    '#render': '/documentation/js-api/functions/render/',
+    '#info': '/documentation/js-api/variables/info/',
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+    '#result-map': '/documentation/js-api/interfaces/LegacyResult#map',
+    '#result-stats-includedfiles':
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+    '#result-stats-entry':
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+    '#result-stats-start':
+      '/documentation/js-api/interfaces/LegacyResult#stats',
+    '#result-stats-end': '/documentation/js-api/interfaces/LegacyResult#stats',
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+    '#error-object': '/documentation/js-api/interfaces/LegacyException',
+    '#error-formatted':
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+    '#error-file': '/documentation/js-api/interfaces/LegacyException#file',
+    '#error-line': '/documentation/js-api/interfaces/LegacyException#line',
+    '#error-column': '/documentation/js-api/interfaces/LegacyException#column',
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+    '#options': '/documentation/js-api/interfaces/LegacySharedOptions',
+    '#input': '/documentation/js-api/interfaces/LegacyFileOptions#includepaths',
+    '#file': '/documentation/js-api/interfaces/LegacyFileOptions#file',
+    '#data': '/documentation/js-api/interfaces/LegacyStringOptions#data',
+    '#indentedsyntax':
+      '/documentation/js-api/interfaces/LegacyStringOptions#indentedSyntax',
+    '#includepaths':
+      '/documentation/js-api/interfaces/LegacySharedOptions#includePaths',
+    '#output': '/documentation/js-api/interfaces/LegacySharedOptions#charset',
+    '#outputstyle':
+      '/documentation/js-api/interfaces/LegacySharedOptions#outputStyle',
+    '#charset': '/documentation/js-api/interfaces/LegacySharedOptions#charset',
+    '#precision':
+      '/documentation/js-api/interfaces/LegacySharedOptions#precision',
+    '#indentType':
+      '/documentation/js-api/interfaces/LegacySharedOptions#indentType',
+    '#indentWidth':
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+    '#linefeed':
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+    '#sourceComments':
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+    '#source-maps':
+      '/documentation/js-api/interfaces/LegacySharedOptions#sourceMap',
+    '#sourcemap':
+      '/documentation/js-api/interfaces/LegacySharedOptions#sourceMap',
+    '#outfile': '/documentation/js-api/interfaces/LegacySharedOptions#outFile',
+    '#omitsourcemapurl':
+      '/documentation/js-api/interfaces/LegacySharedOptions#omitSourceMapUrl',
+    '#sourcemapcontents':
+      '/documentation/js-api/interfaces/LegacySharedOptions#sourceMapContents',
+    '#sourcemapembed':
+      '/documentation/js-api/interfaces/LegacySharedOptions#sourceMapEmbed',
+    '#sourcemaproot':
+      '/documentation/js-api/interfaces/LegacySharedOptions#sourceMapRoot',
+    '#plugins': '/documentation/js-api/interfaces/LegacySharedOptions',
+    '#fiber': '/blog/node-fibers-discontinued',
+    '#functions':
+      '/documentation/js-api/interfaces/LegacySharedOptions#functions',
+    '#importer':
+      '/documentation/js-api/interfaces/LegacySharedOptions#importer',
+    '#other': '/documentation/js-api/interfaces/LegacySharedOptions',
+    '#quietdeps':
+      '/documentation/js-api/interfaces/LegacySharedOptions#quietDeps',
+    '#verbose': '/documentation/js-api/interfaces/LegacySharedOptions#verbose',
+    '#value-types': '/documentation/js-api/modules/types',
+    '#types-number': '/documentation/js-api/classes/types.Number',
+    '#new-types-number-value-unit':
+      '/documentation/js-api/classes/types.Number#constructor',
+    '#number-getvalue': '/documentation/js-api/classes/types.Number#getValue',
+    '#number-getunit': '/documentation/js-api/classes/types.Number#getUnit',
+    '#number-setvalue-value':
+      '/documentation/js-api/classes/types.Number#setValue',
+    '#number-setunit-unit':
+      '/documentation/js-api/classes/types.Number#setUnit',
+    '#types-string': '/documentation/js-api/classes/types.String',
+    '#new-types-string-value':
+      '/documentation/js-api/classes/types.String#constructor',
+    '#string-getvalue': '/documentation/js-api/classes/types.String#getValue',
+    '#string-setvalue-value':
+      '/documentation/js-api/classes/types.String#setValue',
+    '#types-color': '/documentation/js-api/classes/types.Color',
+    '#new-types-color-red-green-blue-alpha-1':
+      '/documentation/js-api/classes/types.Color#constructor',
+    '#new-types-argb': '/documentation/js-api/classes/types.Color#constructor',
+    '#color-getr': '/documentation/js-api/classes/types.Color#getR',
+    '#color-getg': '/documentation/js-api/classes/types.Color#getG',
+    '#color-getb': '/documentation/js-api/classes/types.Color#getB',
+    '#color-geta': '/documentation/js-api/classes/types.Color#getA',
+    '#color-setr-red': '/documentation/js-api/classes/types.Color#setR',
+    '#color-setg-green': '/documentation/js-api/classes/types.Color#setG',
+    '#color-setb-blue': '/documentation/js-api/classes/types.Color#setB',
+    '#color-seta-alpha': '/documentation/js-api/classes/types.Color#setA',
+    '#types-boolean': '/documentation/js-api/classes/types.Boolean',
+    '#types-boolean-true': '/documentation/js-api/classes/types.Boolean#TRUE',
+    '#types-boolean-false': '/documentation/js-api/classes/types.Boolean#FALSE',
+    '#types-boolean-getvalue':
+      '/documentation/js-api/classes/types.Boolean#getValue',
+    '#types-list': '/documentation/js-api/classes/types.List',
+    '#new-types-list-length-comma-true':
+      '/documentation/js-api/classes/types.List#constructor',
+    '#list-getvalue-index': '/documentation/js-api/classes/types.List#getValue',
+    '#list-getseparator':
+      '/documentation/js-api/classes/types.List#getSeparator',
+    '#list-getlength': '/documentation/js-api/classes/types.List#getLength',
+    '#list-setvalue-index-value':
+      '/documentation/js-api/classes/types.List#setValue',
+    '#list-setseparator-comma':
+      '/documentation/js-api/classes/types.List#setSeparator',
+    '#types-map': '/documentation/js-api/classes/types.Map',
+    '#new-types-map-length':
+      '/documentation/js-api/classes/types.Map#constructor',
+    '#map-getkey-index': '/documentation/js-api/classes/types.Map#getKey',
+    '#map-getvalue-index': '/documentation/js-api/classes/types.Map#getValue',
+    '#map-getlength': '/documentation/js-api/classes/types.Map#getLength',
+    '#map-setkey-index-key': '/documentation/js-api/classes/types.Map#setKey',
+    '#map-setvalue-index-value':
+      '/documentation/js-api/classes/types.Map#setValue',
+    '#types-null': '/documentation/js-api/classes/types.Null',
+    '#types-null-null': '/documentation/js-api/classes/types.Null#NULL',
+  },
+};
 
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-      '#types-color': '/documentation/js-api/classes/types.Color',
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-      '#types-boolean-false':
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-      '#types-boolean-getvalue':
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-      '#types-list': '/documentation/js-api/classes/types.List',
-      '#new-types-list-length-comma-true':
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-      '#list-getlength': '/documentation/js-api/classes/types.List#getLength',
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-      '#types-map': '/documentation/js-api/classes/types.Map',
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-        '/documentation/js-api/classes/types.Map#constructor',
-      '#map-getkey-index': '/documentation/js-api/classes/types.Map#getKey',
-      '#map-getvalue-index': '/documentation/js-api/classes/types.Map#getValue',
-      '#map-getlength': '/documentation/js-api/classes/types.Map#getLength',
-      '#map-setkey-index-key': '/documentation/js-api/classes/types.Map#setKey',
-      '#map-setvalue-index-value':
-        '/documentation/js-api/classes/types.Map#setValue',
-      '#types-null': '/documentation/js-api/classes/types.Null',
-      '#types-null-null': '/documentation/js-api/classes/types.Null#NULL',
-    };
-
-    const redirect: string | undefined = redirects[window.location.hash];
-    if (redirect) {
-      window.location.href = redirect;
-    }
-  }
+const { pathname, hash } = window.location;
+const match = redirects[pathname]?.[hash];
+if (match) {
+  window.location.href = match;
+} else if (pathname === '/documentation/' && hash.match(/-option$/)) {
+  // If the user is looking for a Ruby Sass option, redirect them to the Ruby
+  // Sass page for an explanation that it's deprecated.
+  window.location.href = '/ruby-sass';
 }