[persister] Fix IndexedDB load creation issue

Author: jamesgpearce

src/persisters/persister-indexed-db.ts

@@ -55,12 +55,14 @@ export const createIndexedDbPersister = ((
     create: 0 | 1 = 0,
   ): Promise<[any, any]> =>
     promiseNew((resolve, reject) => {
-      const request = WINDOW.indexedDB.open(dbName, 1);
+      const request = WINDOW.indexedDB.open(dbName, create ? 2 : undefined);
       request.onupgradeneeded = () =>
         create &&
-        arrayMap(OBJECT_STORE_NAMES, (objectStoreName) =>
-          request.result.createObjectStore(objectStoreName, KEY_PATH),
-        );
+        arrayMap(OBJECT_STORE_NAMES, (objectStoreName) => {
+          try {
+            request.result.createObjectStore(objectStoreName, KEY_PATH);
+          } catch {}
+        });
       request.onsuccess = async () => {
         try {
           const transaction = request.result.transaction(

test/unit/persisters/persisters.test.ts

@@ -307,7 +307,7 @@ const mockIndexedDb = {
     createIndexedDbPersister(store, dbName, 0.1),
   get: async (dbName: string): Promise<[Tables, Values] | void> => {
     try {
-      const db = await openDB(dbName, 1, {
+      const db = await openDB(dbName, 2, {
         upgrade: (db) => {
           db.createObjectStore('t', {keyPath: 'k'});
           db.createObjectStore('v', {keyPath: 'k'});