⚡ (chat) Improve chat API compatibility with preview mode

packages/js/src/utils/sessionStorage.ts

@@ -0,0 +1,17 @@
+const sessionStorageKey = 'resultId'
+
+export const getExistingResultIdFromSession = () => {
+  try {
+    return sessionStorage.getItem(sessionStorageKey) ?? undefined
+  } catch {
+    /* empty */
+  }
+}
+
+export const setResultInSession = (resultId: string) => {
+  try {
+    return sessionStorage.setItem(sessionStorageKey, resultId)
+  } catch {
+    /* empty */
+  }
+}