show warning if bank settings are wrong

1 files changed, 12 insertions, 4 deletions

diff --git a/packages/demobank-ui/src/hooks/backend.ts b/packages/demobank-ui/src/hooks/backend.ts
index e0b8d83ef..ca73a4793 100644
--- a/packages/demobank-ui/src/hooks/backend.ts
+++ b/packages/demobank-ui/src/hooks/backend.ts
@@ -53,10 +53,18 @@ interface LoggedOut {
 
 export function getInitialBackendBaseURL(): string {
   const overrideUrl = localStorage.getItem("bank-base-url");
-
-  return canonicalizeBaseUrl(
-    overrideUrl ? overrideUrl : bankUiSettings.backendBaseURL,
-  );
+  if (!overrideUrl) {
+    //normal path
+    if (!bankUiSettings.backendBaseURL) {
+      console.error(
+        "ERROR: backendBaseURL was overridden by a setting file and missing. Setting value to 'window.origin'",
+      );
+      return canonicalizeBaseUrl(window.origin);
+    }
+    return canonicalizeBaseUrl(bankUiSettings.backendBaseURL);
+  }
+  // testing/development path
+  return canonicalizeBaseUrl(overrideUrl);
 }
 
 export const defaultState: BackendState = {