fix ui: safeguard around prefetched mob keys

2024-05-28 15:46:04 +02:00 · 2024-05-28 15:46:04 +02:00 · 7166daee05
commit 7166daee05
parent 95b8e9656f
1 changed files with 7 additions and 2 deletions
--- a/frontend/app/mstore/sessionStore.ts
+++ b/frontend/app/mstore/sessionStore.ts
@ -183,8 +183,13 @@ export default class SessionStore {
    }
    const nextEntryNum =
      keys.length > 0
-        ? Math.max(...keys.map((key) => this.prefetchedMobUrls[key].entryNum)) +
-          1
+        ? Math.max(
+            ...keys.map((key) =>
+              this.prefetchedMobUrls[key]
+                ? this.prefetchedMobUrls[key].entryNum
+                : 0
+            )
+          ) + 1
        : 0;
    this.prefetchedMobUrls[sessionId] = {
      data: fileData,