BUGFIX: Use a dynamic URL for user impersonation

Neos.Neos/Resources/Private/Partials/Backend/UserMenu.html

@@ -1,5 +1,5 @@
 {namespace neos=Neos\Neos\ViewHelpers}
-<div class="neos-button-group neos-user-menu" data-csrf-Token="{f:security.csrfToken()}">
+<div class="neos-button-group neos-user-menu" data-csrf-Token="{f:security.csrfToken()}" data-module-basepath="{neos:uri.module(path: '')}">
 	<button class="neos-dropdown-toggle neos-button" data-neos-toggle="dropdown" href="#" title="{neos:backend.translate(id: 'userSettings.usermenu', source: 'Modules', value: 'User Menu')}" data-neos-tooltip data-placement="left">
 		<i class="fas fa-user"></i> {user.name.fullName} <i class="fas fa-chevron-down"></i>
 	</button>

Neos.Neos/Resources/Public/JavaScript/Components/TopBar/UserMenu.js

@@ -2,21 +2,35 @@ import { isNil } from '../../Helper'
 import {ApiService} from '../../Services'
 import { RestoreButton } from '../../Templates/RestoreButton'
 
-const BASE_PATH = '/neos/impersonate/'
 export default class UserMenu {
     constructor(_root) {
-        const csfrTokenField = document.querySelector('.neos-user-menu[data-csrf-token]')
-        this._csrfToken = !isNil(csfrTokenField)
-            ? csfrTokenField.getAttribute('data-csrf-token')
-            : ''
+        const userMenuElement = document.querySelector('.neos-user-menu[data-csrf-token]')
+        this._csrfToken = isNil(userMenuElement) ? '' : userMenuElement.getAttribute('data-csrf-token')
+        this._baseModuleUri = this._getBaseModuleUri(userMenuElement)
+        this._basePath = this._getImpersonationBasePath()
         this._root = _root
-        this._apiService = new ApiService(BASE_PATH, this._csrfToken)
+        this._apiService = new ApiService(this._basePath, this._csrfToken)
 
         if (!isNil(_root)) {
             this._checkImpersonateStatus()
         }
     }
 
+    _getBaseModuleUri(element) {
+        let url = '/neos'
+        if (!isNil(element) && element.hasAttribute('data-module-basepath')) {
+            url = element.getAttribute('data-module-basepath')
+        }
+        return url
+    }
+
+    _getImpersonationBasePath() {
+        let basePath = this._baseModuleUri
+        if (!basePath.endsWith('/')) {
+            basePath += '/'
+        }
+        return basePath + 'impersonate/'
+    }
     _renderRestoreButton(user) {
         const userMenuDropDown = this._root.querySelector('.neos-dropdown-menu')
         if (isNil(userMenuDropDown) || isNil(user)) {
@@ -64,7 +78,7 @@ export default class UserMenu {
         const response = this._apiService.callRestore()
         response
             .then((data) => {
-                const { origin, impersonate, status } = data
+                const { origin, impersonate } = data
                 const message = window.NeosCMS.I18n.translate(
                     'impersonate.success.restoreUser',
                     'Switched back from {0} to the orginal user {1}.',
@@ -79,7 +93,7 @@ export default class UserMenu {
 
                 // load default backend, so we don't need to care for the module permissions.
                 // because in not every neos version the users have by default the content module or user module
-                window.location.pathname = '/neos'
+                window.location.href = this._baseModuleUri
             })
             .catch(function (error) {
                 if (window.NeosCMS) {

Neos.Neos/Resources/Public/JavaScript/Module/Administration/UserManagement.js

@@ -2,13 +2,14 @@ import {isNil} from '../../Helper'
 import {ApiService} from '../../Services'
 import {ImpersonateButton} from '../../Templates/ImpersonateButton'
 
-const BASE_PATH = '/neos/impersonate/'
 export default class UserManagement {
     constructor(_root) {
-        const csfrTokenField = document.querySelector('.neos-user-menu[data-csrf-token]')
+        const userMenuElement = document.querySelector('.neos-user-menu[data-csrf-token]')
         this._root = _root
-        this._csrfToken = !isNil(csfrTokenField) ? csfrTokenField.getAttribute('data-csrf-token') : ''
-        this._apiService = new ApiService(BASE_PATH, this._csrfToken)
+        this._csrfToken = isNil(userMenuElement) ? '' : userMenuElement.getAttribute('data-csrf-token')
+        this._baseModuleUri = this._getBaseModuleUri(userMenuElement)
+        this._basePath = this._getImpersonationBasePath()
+        this._apiService = new ApiService(this._basePath, this._csrfToken)
 
         if (!isNil(_root)) {
             this._initialize()
@@ -27,6 +28,21 @@ export default class UserManagement {
         });
     }
 
+    _getBaseModuleUri(element) {
+        let url = '/neos'
+        if (!isNil(element) && element.hasAttribute('data-module-basepath')) {
+            url = element.getAttribute('data-module-basepath')
+        }
+        return url
+    }
+
+    _getImpersonationBasePath() {
+        let basePath = this._baseModuleUri
+        if (!basePath.endsWith('/')) {
+            basePath += '/'
+        }
+        return basePath + 'impersonate/'
+    }
     _renderImpersonateButtons() {
         const userTableActionButtons = Array.from(this._root.querySelectorAll('.neos-table .neos-action'))
         userTableActionButtons.forEach(_actionContainer => {
@@ -61,14 +77,14 @@ export default class UserManagement {
         const response = this._apiService.callUserChange(identifier);
         response
             .then((data) => {
-                const {user, status} = data
+                const {user} = data
                 const username = isNil(user) ? '' : user.accountIdentifier
                 const message = window.NeosCMS.I18n.translate('impersonate.success.impersonateUser', 'Switched to the new user {0}.', 'Neos.Neos', 'Main', {0: username})
                 window.NeosCMS.Notification.ok(message)
 
                 // load default backend, so we don't need to care for the module permissions.
                 // because in not every neos version the users have by default the content module or user module
-                window.location.pathname = '/neos'
+                window.location.href = this._baseModuleUri
             })
             .catch(function (error) {
                 if (window.NeosCMS) {