fix: respect BASE_PATH in redirects, comparisons, and cookie consent paths

frontend/editor/src/core/components/filesPage/FileManagerView.tsx

@@ -34,6 +34,7 @@ import CloudUploadIcon from "@mui/icons-material/CloudUpload";
 import KeyboardArrowRightIcon from "@mui/icons-material/KeyboardArrowRight";
 import RefreshIcon from "@mui/icons-material/Refresh";
 
+import { stripBasePath } from "@app/constants/app";
 import { useSharingEnabled } from "@app/hooks/useSharingEnabled";
 import { useFolders } from "@app/contexts/FolderContext";
 import { useFileActions } from "@app/contexts/file/fileHooks";
@@ -190,10 +191,11 @@ export default function FileManagerView() {
 
   // Push folder selection into the URL while still on /files.
   useEffect(() => {
-    if (!window.location.pathname.startsWith("/files")) return;
+    const stripped = stripBasePath(window.location.pathname);
+    if (!stripped.startsWith("/files")) return;
     const target =
       currentFolderId === null ? "/files" : `/files/${currentFolderId}`;
-    if (window.location.pathname !== target) {
+    if (stripped !== target) {
       navigate(target, { replace: true });
     }
   }, [currentFolderId, navigate]);

frontend/editor/src/core/components/shared/AppConfigModal.tsx

@@ -23,6 +23,7 @@ import {
   useUnsavedChanges,
 } from "@app/contexts/UnsavedChangesContext";
 import { SettingsSearchBar } from "@app/components/shared/config/SettingsSearchBar";
+import { stripBasePath } from "@app/constants/app";
 
 interface AppConfigModalProps {
   opened: boolean;
@@ -82,7 +83,7 @@ const AppConfigModalInner: React.FC<AppConfigModalProps> = ({
       const detail = (ev as CustomEvent).detail as { key?: NavKey } | undefined;
       if (detail?.key) {
         const alreadyInSettings =
-          window.location.pathname.startsWith("/settings");
+          stripBasePath(window.location.pathname).startsWith("/settings");
         navigate(`/settings/${detail.key}`, {
           replace: alreadyInSettings,
         });

frontend/editor/src/core/components/viewer/useViewerWorkbenchBarButtons.tsx

@@ -18,7 +18,7 @@ import {
   useNavigationState,
   useNavigationGuard,
 } from "@app/contexts/NavigationContext";
-import { BASE_PATH, withBasePath } from "@app/constants/app";
+import { stripBasePath, withBasePath } from "@app/constants/app";
 import { useRedaction, useRedactionMode } from "@app/contexts/RedactionContext";
 import TextFieldsIcon from "@mui/icons-material/TextFields";
 import StraightenIcon from "@mui/icons-material/Straighten";
@@ -73,17 +73,10 @@ export function useViewerWorkbenchBarButtons(
     });
   }, [registerImmediatePanUpdate]);
 
-  const stripBasePath = useCallback((path: string) => {
-    if (BASE_PATH && path.startsWith(BASE_PATH)) {
-      return path.slice(BASE_PATH.length) || "/";
-    }
-    return path;
-  }, []);
-
   const isAnnotationsPath = useCallback(() => {
     const cleanPath = stripBasePath(window.location.pathname).toLowerCase();
     return cleanPath === "/annotations" || cleanPath.endsWith("/annotations");
-  }, [stripBasePath]);
+  }, []);
 
   const [isAnnotationsActive, setIsAnnotationsActive] = useState<boolean>(() =>
     isAnnotationsPath(),

frontend/editor/src/core/constants/app.ts

@@ -38,3 +38,16 @@ export const absoluteWithBasePath = (path: string): string => {
   const clean = path.startsWith("/") ? path : `/${path}`;
   return `${window.location.origin}${BASE_PATH}${clean}`;
 };
+
+/**
+ * Remove the BASE_PATH prefix from a pathname so comparisons against
+ * bare app routes ("/login", "/files", …) work under any subpath deploy.
+ */
+export const stripBasePath = (pathname: string): string => {
+  if (!BASE_PATH) return pathname;
+  if (pathname === BASE_PATH) return "/";
+  if (pathname.startsWith(`${BASE_PATH}/`)) {
+    return pathname.slice(BASE_PATH.length);
+  }
+  return pathname;
+};

frontend/editor/src/core/hooks/useCookieConsent.ts

@@ -36,14 +36,14 @@ export const useCookieConsent = ({
 
     const mainCSS = document.createElement("link");
     mainCSS.rel = "stylesheet";
-    mainCSS.href = `${BASE_PATH}css/cookieconsent.css`;
+    mainCSS.href = `${BASE_PATH}/css/cookieconsent.css`;
     if (!document.querySelector(`link[href="${mainCSS.href}"]`)) {
       document.head.appendChild(mainCSS);
     }
 
     const customCSS = document.createElement("link");
     customCSS.rel = "stylesheet";
-    customCSS.href = `${BASE_PATH}css/cookieconsentCustomisation.css`;
+    customCSS.href = `${BASE_PATH}/css/cookieconsentCustomisation.css`;
     if (!document.querySelector(`link[href="${customCSS.href}"]`)) {
       document.head.appendChild(customCSS);
     }
@@ -57,7 +57,7 @@ export const useCookieConsent = ({
     }
 
     const script = document.createElement("script");
-    script.src = `${BASE_PATH}js/thirdParty/cookieconsent.umd.js`;
+    script.src = `${BASE_PATH}/js/thirdParty/cookieconsent.umd.js`;
     script.onload = () => {
       setTimeout(() => {
         const detectTheme = () => {

frontend/editor/src/core/services/httpErrorHandler.ts

@@ -11,6 +11,7 @@ import {
   clampText,
   extractAxiosErrorMessage,
 } from "@app/services/httpErrorUtils";
+import { withBasePath } from "@app/constants/app";
 
 // Module-scoped state to reduce global variable usage
 const recentSpecialByEndpoint: Record<string, number> = {};
@@ -82,7 +83,7 @@ export async function handleHttpError(error: any): Promise<boolean> {
         // ignore storage access failures
       }
       const expiredPrefix = hadStoredJwt ? "expired=true&" : "";
-      window.location.href = `/login?${expiredPrefix}from=${encodeURIComponent(currentLocation)}`;
+      window.location.href = `${withBasePath("/login")}?${expiredPrefix}from=${encodeURIComponent(currentLocation)}`;
       return true; // Suppress toast since we're redirecting
     }
 

frontend/editor/src/core/utils/settingsNavigation.ts

@@ -1,4 +1,5 @@
 import { NavKey } from "@app/components/shared/config/types";
+import { stripBasePath, withBasePath } from "@app/constants/app";
 
 /**
  * Navigate to a specific settings section
@@ -13,8 +14,7 @@ import { NavKey } from "@app/components/shared/config/types";
  * navigateToSettings('adminPremium');
  */
 export function navigateToSettings(section: NavKey) {
-  const basePath = window.location.pathname.split("/settings")[0] || "";
-  const newPath = `${basePath}/settings/${section}`;
+  const newPath = withBasePath(`/settings/${section}`);
   window.history.pushState({}, "", newPath);
 
   // Trigger a popstate event to notify components
@@ -30,10 +30,10 @@ export function navigateToSettings(section: NavKey) {
  *
  * @example
  * <a href={getSettingsUrl('people')}>Go to People Settings</a>
- * // Returns: "/settings/people"
+ * // Returns: "/settings/people" (or "/bpp/settings/people" under subpath)
  */
 export function getSettingsUrl(section: NavKey): string {
-  return `/settings/${section}`;
+  return withBasePath(`/settings/${section}`);
 }
 
 /**
@@ -43,7 +43,7 @@ export function getSettingsUrl(section: NavKey): string {
  * @returns True if in settings (and matching specific section if provided)
  */
 export function isInSettings(section?: NavKey): boolean {
-  const pathname = window.location.pathname;
+  const pathname = stripBasePath(window.location.pathname);
 
   if (!section) {
     return pathname.startsWith("/settings");