Fix empty agent

Author: joepio

react/src/useCurrentAgent.ts

@@ -54,7 +54,7 @@ export const useCurrentAgent = (): [
 export function initAgentFromLocalStorage(): Agent | undefined {
   const lsItem = localStorage.getItem(AGENT_LOCAL_STORAGE_KEY);
 
-  if (lsItem === null || lsItem === undefined) {
+  if (lsItem === null || lsItem === undefined || lsItem === 'undefined') {
     return undefined;
   }
 

react/src/useLocalStorage.ts

@@ -17,6 +17,10 @@ export function useLocalStorage<T>(
       // Get from local storage by key
       const item = window.localStorage.getItem(key);
 
+      if (item === 'undefined') {
+        return initialValue;
+      }
+
       // Parse stored json or if none return initialValue
       return item ? JSON.parse(item) : initialValue;
     } catch (error) {