1 files changed, 8 insertions, 4 deletions
diff --git a/packages/demobank-ui/src/hooks/index.ts b/packages/demobank-ui/src/hooks/index.ts
index 44b0598e6..e9c68812c 100644
--- a/packages/demobank-ui/src/hooks/index.ts
+++ b/packages/demobank-ui/src/hooks/index.ts
@@ -20,7 +20,8 @@
  */
 
 import { StateUpdater } from "preact/hooks";
-import { useLocalStorage } from "@gnu-taler/web-util/browser";
+import { buildStorageKey, useLocalStorage } from "@gnu-taler/web-util/browser";
+import { codecForBoolean } from "@gnu-taler/taler-util";
 export type ValueOrFunction<T> = T | ((p: T) => T);
 
 const calculateRootPath = () => {
@@ -31,11 +32,14 @@ const calculateRootPath = () => {
   return rootPath;
 };
 
+const BACKEND_URL_KEY = buildStorageKey("backend-url");
+const TRIED_LOGIN_KEY = buildStorageKey("tried-login", codecForBoolean());
+
 export function useBackendURL(
   url?: string,
 ): [string, boolean, StateUpdater<string>, () => void] {
   const { value, update: setter } = useLocalStorage(
-    "backend-url",
+    BACKEND_URL_KEY,
     url || calculateRootPath(),
   );
 
@@ -43,10 +47,10 @@ export function useBackendURL(
     value: triedToLog,
     update: setTriedToLog,
     reset: resetBackend,
-  } = useLocalStorage("tried-login");
+  } = useLocalStorage(TRIED_LOGIN_KEY);
 
   const checkedSetter = (v: ValueOrFunction<string>) => {
-    setTriedToLog("yes");
+    setTriedToLog(true);
     const computedValue =
       v instanceof Function ? v(value) : v.replace(/\/$/, "");
     return setter(computedValue);