diff --git a/packages/docusaurus-plugin-client-redirects/src/__tests__/collectRedirects.test.ts b/packages/docusaurus-plugin-client-redirects/src/__tests__/collectRedirects.test.ts
index f43e1d795542..8cf956a077c9 100644
--- a/packages/docusaurus-plugin-client-redirects/src/__tests__/collectRedirects.test.ts
+++ b/packages/docusaurus-plugin-client-redirects/src/__tests__/collectRedirects.test.ts
@@ -12,12 +12,12 @@ import {removeTrailingSlash} from '@docusaurus/utils';
 
 function createTestPluginContext(
   options?: UserPluginOptions,
-  routesPaths: string[] = [],
+  relativeRoutesPaths: string[] = [],
 ): PluginContext {
   return {
     outDir: '/tmp',
     baseUrl: 'https://docusaurus.io',
-    routesPaths,
+    relativeRoutesPaths,
     options: normalizePluginOptions(options),
   };
 }
diff --git a/packages/docusaurus-plugin-client-redirects/src/__tests__/extensionRedirects.test.ts b/packages/docusaurus-plugin-client-redirects/src/__tests__/extensionRedirects.test.ts
index ce327688a22a..1bb284447e37 100644
--- a/packages/docusaurus-plugin-client-redirects/src/__tests__/extensionRedirects.test.ts
+++ b/packages/docusaurus-plugin-client-redirects/src/__tests__/extensionRedirects.test.ts
@@ -15,33 +15,32 @@ const createExtensionValidationTests = (
   extensionRedirectCreatorFn: (
     paths: string[],
     extensions: string[],
-    baseUrl: string,
   ) => RedirectMetadata[],
 ) => {
   test('should reject empty extensions', () => {
     expect(() => {
-      extensionRedirectCreatorFn(['/'], ['.html'], '/');
+      extensionRedirectCreatorFn(['/'], ['.html']);
     }).toThrowErrorMatchingInlineSnapshot(
       `"Extension=['.html'] contains a . (dot) and is not allowed. If the redirect extension system is not good enough for your usecase, you can create redirects yourself with the 'createRedirects' plugin option."`,
     );
   });
   test('should reject extensions with .', () => {
     expect(() => {
-      extensionRedirectCreatorFn(['/'], ['.html'], '/');
+      extensionRedirectCreatorFn(['/'], ['.html']);
     }).toThrowErrorMatchingInlineSnapshot(
       `"Extension=['.html'] contains a . (dot) and is not allowed. If the redirect extension system is not good enough for your usecase, you can create redirects yourself with the 'createRedirects' plugin option."`,
     );
   });
   test('should reject extensions with /', () => {
     expect(() => {
-      extensionRedirectCreatorFn(['/'], ['ht/ml'], '/');
+      extensionRedirectCreatorFn(['/'], ['ht/ml']);
     }).toThrowErrorMatchingInlineSnapshot(
       `"Extension=['ht/ml'] contains a / and is not allowed. If the redirect extension system is not good enough for your usecase, you can create redirects yourself with the 'createRedirects' plugin option."`,
     );
   });
   test('should reject extensions with illegal url char', () => {
     expect(() => {
-      extensionRedirectCreatorFn(['/'], [','], '/');
+      extensionRedirectCreatorFn(['/'], [',']);
     }).toThrowErrorMatchingInlineSnapshot(
       `"Extension=[','] contains invalid uri characters. If the redirect extension system is not good enough for your usecase, you can create redirects yourself with the 'createRedirects' plugin option."`,
     );
@@ -53,28 +52,28 @@ describe('createToExtensionsRedirects', () => {
 
   test('should create redirects from html/htm extensions', () => {
     const ext = ['html', 'htm'];
-    expect(createToExtensionsRedirects([''], ext, '/')).toEqual([]);
-    expect(createToExtensionsRedirects(['/'], ext, '/')).toEqual([]);
-    expect(createToExtensionsRedirects(['/abc.html'], ext, '/')).toEqual([
+    expect(createToExtensionsRedirects([''], ext)).toEqual([]);
+    expect(createToExtensionsRedirects(['/'], ext)).toEqual([]);
+    expect(createToExtensionsRedirects(['/abc.html'], ext)).toEqual([
       {from: '/abc', to: '/abc.html'},
     ]);
-    expect(createToExtensionsRedirects(['/abc.htm'], ext, '/')).toEqual([
+    expect(createToExtensionsRedirects(['/abc.htm'], ext)).toEqual([
       {from: '/abc', to: '/abc.htm'},
     ]);
-    expect(createToExtensionsRedirects(['/abc.xyz'], ext, '/')).toEqual([]);
+    expect(createToExtensionsRedirects(['/abc.xyz'], ext)).toEqual([]);
   });
 
-  test('should create "to" redirects without baseUrl when baseUrl is used', () => {
+  test('should create "to" redirects when relativeRoutesPath contains a prefix', () => {
     expect(
-      createToExtensionsRedirects(['/prefix/file.html'], ['html'], '/prefix/'),
-    ).toEqual([{from: '/file', to: '/file.html'}]);
+      createToExtensionsRedirects(['/prefix/file.html'], ['html']),
+    ).toEqual([{from: '/prefix/file', to: '/prefix/file.html'}]);
   });
 
   test('should not create redirection for an empty extension array', () => {
     const ext: string[] = [];
-    expect(createToExtensionsRedirects([''], ext, '/')).toEqual([]);
-    expect(createToExtensionsRedirects(['/'], ext, '/')).toEqual([]);
-    expect(createToExtensionsRedirects(['/abc.html'], ext, '/')).toEqual([]);
+    expect(createToExtensionsRedirects([''], ext)).toEqual([]);
+    expect(createToExtensionsRedirects(['/'], ext)).toEqual([]);
+    expect(createToExtensionsRedirects(['/abc.html'], ext)).toEqual([]);
   });
 });
 
@@ -83,28 +82,28 @@ describe('createFromExtensionsRedirects', () => {
 
   test('should create redirects to html/htm extensions', () => {
     const ext = ['html', 'htm'];
-    expect(createFromExtensionsRedirects([''], ext, '/')).toEqual([]);
-    expect(createFromExtensionsRedirects(['/'], ext, '/')).toEqual([]);
-    expect(createFromExtensionsRedirects(['/abc'], ext, '/')).toEqual([
+    expect(createFromExtensionsRedirects([''], ext)).toEqual([]);
+    expect(createFromExtensionsRedirects(['/'], ext)).toEqual([]);
+    expect(createFromExtensionsRedirects(['/abc'], ext)).toEqual([
       {from: '/abc.html', to: '/abc'},
       {from: '/abc.htm', to: '/abc'},
     ]);
-    expect(createFromExtensionsRedirects(['/def.html'], ext, '/')).toEqual([]);
-    expect(createFromExtensionsRedirects(['/def/'], ext, '/')).toEqual([]);
+    expect(createFromExtensionsRedirects(['/def.html'], ext)).toEqual([]);
+    expect(createFromExtensionsRedirects(['/def/'], ext)).toEqual([]);
   });
 
-  test('should create "from" redirects without baseUrl when baseUrl is used', () => {
-    expect(
-      createFromExtensionsRedirects(['/prefix/file'], ['html'], '/prefix/'),
-    ).toEqual([{from: '/file.html', to: '/file'}]);
+  test('should create "from" redirects when relativeRoutesPath contains a prefix', () => {
+    expect(createFromExtensionsRedirects(['/prefix/file'], ['html'])).toEqual([
+      {from: '/prefix/file.html', to: '/prefix/file'},
+    ]);
   });
 
   test('should not create redirection for an empty extension array', () => {
     const ext: string[] = [];
-    expect(createFromExtensionsRedirects([''], ext, '/')).toEqual([]);
-    expect(createFromExtensionsRedirects(['/'], ext, '/')).toEqual([]);
-    expect(createFromExtensionsRedirects(['/abc'], ext, '/')).toEqual([]);
-    expect(createFromExtensionsRedirects(['/def.html'], ext, '/')).toEqual([]);
-    expect(createFromExtensionsRedirects(['/def/'], ext, '/')).toEqual([]);
+    expect(createFromExtensionsRedirects([''], ext)).toEqual([]);
+    expect(createFromExtensionsRedirects(['/'], ext)).toEqual([]);
+    expect(createFromExtensionsRedirects(['/abc'], ext)).toEqual([]);
+    expect(createFromExtensionsRedirects(['/def.html'], ext)).toEqual([]);
+    expect(createFromExtensionsRedirects(['/def/'], ext)).toEqual([]);
   });
 });
diff --git a/packages/docusaurus-plugin-client-redirects/src/collectRedirects.ts b/packages/docusaurus-plugin-client-redirects/src/collectRedirects.ts
index 73cf5f09833e..1a2541897d90 100644
--- a/packages/docusaurus-plugin-client-redirects/src/collectRedirects.ts
+++ b/packages/docusaurus-plugin-client-redirects/src/collectRedirects.ts
@@ -50,9 +50,7 @@ function validateCollectedRedirects(
     );
   }
 
-  const allowedToPaths = pluginContext.routesPaths.map((path) =>
-    path.replace(pluginContext.baseUrl, '/'),
-  );
+  const allowedToPaths = pluginContext.relativeRoutesPaths;
   const toPaths = redirects.map((redirect) => redirect.to);
   const illegalToPaths = difference(toPaths, allowedToPaths);
   if (illegalToPaths.length > 0) {
@@ -91,7 +89,7 @@ It is not possible to redirect the same pathname to multiple destinations:
 
   // We don't want to override an already existing route with a redirect file!
   const redirectsOverridingExistingPath = redirects.filter((redirect) =>
-    pluginContext.routesPaths.includes(redirect.from),
+    pluginContext.relativeRoutesPaths.includes(redirect.from),
   );
   if (redirectsOverridingExistingPath.length > 0) {
     console.error(
@@ -103,7 +101,7 @@ It is not possible to redirect the same pathname to multiple destinations:
     );
   }
   redirects = redirects.filter(
-    (redirect) => !pluginContext.routesPaths.includes(redirect.from),
+    (redirect) => !pluginContext.relativeRoutesPaths.includes(redirect.from),
   );
 
   return redirects;
@@ -113,18 +111,16 @@ It is not possible to redirect the same pathname to multiple destinations:
 function doCollectRedirects(pluginContext: PluginContext): RedirectMetadata[] {
   return [
     ...createFromExtensionsRedirects(
-      pluginContext.routesPaths,
+      pluginContext.relativeRoutesPaths,
       pluginContext.options.fromExtensions,
-      pluginContext.baseUrl,
     ),
     ...createToExtensionsRedirects(
-      pluginContext.routesPaths,
+      pluginContext.relativeRoutesPaths,
       pluginContext.options.toExtensions,
-      pluginContext.baseUrl,
     ),
     ...createRedirectsOptionRedirects(pluginContext.options.redirects),
     ...createCreateRedirectsOptionRedirects(
-      pluginContext.routesPaths,
+      pluginContext.relativeRoutesPaths,
       pluginContext.options.createRedirects,
     ),
   ];
diff --git a/packages/docusaurus-plugin-client-redirects/src/extensionRedirects.ts b/packages/docusaurus-plugin-client-redirects/src/extensionRedirects.ts
index ee43f329d7a7..9adebf43b437 100644
--- a/packages/docusaurus-plugin-client-redirects/src/extensionRedirects.ts
+++ b/packages/docusaurus-plugin-client-redirects/src/extensionRedirects.ts
@@ -43,7 +43,6 @@ const addLeadingDot = (extension: string) => `.${extension}`;
 export function createToExtensionsRedirects(
   paths: string[],
   extensions: string[],
-  baseUrl: string,
 ): RedirectMetadata[] {
   extensions.forEach(validateExtension);
 
@@ -54,8 +53,8 @@ export function createToExtensionsRedirects(
     if (extensionFound) {
       const routePathWithoutExtension = removeSuffix(path, extensionFound);
       return [routePathWithoutExtension].map((from) => ({
-        from: trimBaseUrl(from, baseUrl),
-        to: trimBaseUrl(path, baseUrl),
+        from,
+        to: path,
       }));
     }
     return [];
@@ -68,7 +67,6 @@ export function createToExtensionsRedirects(
 export function createFromExtensionsRedirects(
   paths: string[],
   extensions: string[],
-  baseUrl: string,
 ): RedirectMetadata[] {
   extensions.forEach(validateExtension);
 
@@ -82,14 +80,10 @@ export function createFromExtensionsRedirects(
       return [];
     }
     return extensions.map((ext) => ({
-      from: `${trimBaseUrl(path, baseUrl)}.${ext}`,
-      to: trimBaseUrl(path, baseUrl),
+      from: `${path}.${ext}`,
+      to: path,
     }));
   };
 
   return flatten(paths.map(createPathRedirects));
 }
-
-function trimBaseUrl(path: string, baseUrl: string) {
-  return path.startsWith(baseUrl) ? path.replace(baseUrl, '/') : path;
-}
diff --git a/packages/docusaurus-plugin-client-redirects/src/index.ts b/packages/docusaurus-plugin-client-redirects/src/index.ts
index c94b734514e4..ef630903c8c7 100644
--- a/packages/docusaurus-plugin-client-redirects/src/index.ts
+++ b/packages/docusaurus-plugin-client-redirects/src/index.ts
@@ -14,6 +14,7 @@ import writeRedirectFiles, {
   toRedirectFilesMetadata,
   RedirectFileMetadata,
 } from './writeRedirectFiles';
+import {removePrefix} from '@docusaurus/utils';
 
 export default function pluginClientRedirectsPages(
   _context: LoadContext,
@@ -25,7 +26,9 @@ export default function pluginClientRedirectsPages(
     name: 'docusaurus-plugin-client-redirects',
     async postBuild(props: Props) {
       const pluginContext: PluginContext = {
-        routesPaths: props.routesPaths,
+        relativeRoutesPaths: props.routesPaths.map(
+          (path) => `/${removePrefix(path, props.baseUrl)}`,
+        ),
         baseUrl: props.baseUrl,
         outDir: props.outDir,
         options,
diff --git a/packages/docusaurus-plugin-client-redirects/src/types.ts b/packages/docusaurus-plugin-client-redirects/src/types.ts
index fe8b0296ed03..15c0987e0dd0 100644
--- a/packages/docusaurus-plugin-client-redirects/src/types.ts
+++ b/packages/docusaurus-plugin-client-redirects/src/types.ts
@@ -28,11 +28,9 @@ export type RedirectOption = {
 export type UserPluginOptions = Partial<PluginOptions>;
 
 // The minimal infos the plugin needs to work
-export type PluginContext = Pick<
-  Props,
-  'routesPaths' | 'outDir' | 'baseUrl'
-> & {
+export type PluginContext = Pick<Props, 'outDir' | 'baseUrl'> & {
   options: PluginOptions;
+  relativeRoutesPaths: string[];
 };
 
 // In-memory representation of redirects we want: easier to test
diff --git a/packages/docusaurus-utils/src/__tests__/index.test.ts b/packages/docusaurus-utils/src/__tests__/index.test.ts
index 29cde6684ae4..23167e457351 100644
--- a/packages/docusaurus-utils/src/__tests__/index.test.ts
+++ b/packages/docusaurus-utils/src/__tests__/index.test.ts
@@ -22,6 +22,7 @@ import {
   addTrailingSlash,
   removeTrailingSlash,
   removeSuffix,
+  removePrefix,
   getFilePathForRoutePath,
 } from '../index';
 
@@ -419,6 +420,21 @@ describe('removeSuffix', () => {
   });
 });
 
+describe('removePrefix', () => {
+  test('should no-op 1', () => {
+    expect(removePrefix('abcdef', 'ijk')).toEqual('abcdef');
+  });
+  test('should no-op 2', () => {
+    expect(removePrefix('abcdef', 'def')).toEqual('abcdef');
+  });
+  test('should no-op 3', () => {
+    expect(removePrefix('abcdef', '')).toEqual('abcdef');
+  });
+  test('should remove prefix', () => {
+    expect(removePrefix('abcdef', 'ab')).toEqual('cdef');
+  });
+});
+
 describe('getFilePathForRoutePath', () => {
   test('works for /', () => {
     expect(getFilePathForRoutePath('/')).toEqual('/index.html');
diff --git a/packages/docusaurus-utils/src/index.ts b/packages/docusaurus-utils/src/index.ts
index 542b05ba2450..25acc1b709e8 100644
--- a/packages/docusaurus-utils/src/index.ts
+++ b/packages/docusaurus-utils/src/index.ts
@@ -384,6 +384,10 @@ export function removeSuffix(str: string, suffix: string): string {
   return str.endsWith(suffix) ? str.slice(0, -suffix.length) : str;
 }
 
+export function removePrefix(str: string, prefix: string): string {
+  return str.startsWith(prefix) ? str.slice(prefix.length) : str;
+}
+
 export function getFilePathForRoutePath(routePath: string): string {
   const fileName = path.basename(routePath);
   const filePath = path.dirname(routePath);
diff --git a/packages/docusaurus/src/server/configValidation.ts b/packages/docusaurus/src/server/configValidation.ts
index f745a35cfc35..c80525930f4e 100644
--- a/packages/docusaurus/src/server/configValidation.ts
+++ b/packages/docusaurus/src/server/configValidation.ts
@@ -90,23 +90,23 @@ export function validateConfig(
     abortEarly: false,
   });
   if (error) {
-    const unknownFields = error.details.reduce((formatedError, err) => {
+    const unknownFields = error.details.reduce((formattedError, err) => {
       if (err.type === 'object.unknown') {
-        return `${formatedError}"${err.path}",`;
+        return `${formattedError}"${err.path}",`;
       }
-      return formatedError;
+      return formattedError;
     }, '');
-    let formatedError = error.details.reduce(
-      (accumalatedErr, err) =>
+    let formattedError = error.details.reduce(
+      (accumulatedErr, err) =>
         err.type !== 'object.unknown'
-          ? `${accumalatedErr}${err.message}\n`
-          : accumalatedErr,
+          ? `${accumulatedErr}${err.message}\n`
+          : accumulatedErr,
       '',
     );
-    formatedError = unknownFields
-      ? `${formatedError}These field(s) [${unknownFields}] are not recognized in ${CONFIG_FILE_NAME}.\nIf you still want these fields to be in your configuration, put them in the 'customFields' attribute.\nSee https://v2.docusaurus.io/docs/docusaurus.config.js/#customfields`
-      : formatedError;
-    throw new Error(formatedError);
+    formattedError = unknownFields
+      ? `${formattedError}These field(s) [${unknownFields}] are not recognized in ${CONFIG_FILE_NAME}.\nIf you still want these fields to be in your configuration, put them in the 'customFields' attribute.\nSee https://v2.docusaurus.io/docs/docusaurus.config.js/#customfields`
+      : formattedError;
+    throw new Error(formattedError);
   } else {
     return value;
   }
diff --git a/website/docusaurus.config.js b/website/docusaurus.config.js
index 43c06f7943ef..1567e83c7f5d 100644
--- a/website/docusaurus.config.js
+++ b/website/docusaurus.config.js
@@ -8,9 +8,9 @@
 const versions = require('./versions.json');
 
 const allDocHomesPaths = [
-  '/docs',
-  '/docs/next',
-  ...versions.slice(1).map((version) => `/docs/${version}`),
+  '/docs/',
+  '/docs/next/',
+  ...versions.slice(1).map((version) => `/docs/${version}/`),
 ];
 
 module.exports = {