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October 4, 2018 14:59
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| <html> | |
| <body> | |
| <script> | |
| function asPromise(req) { | |
| return new Promise((resolve, reject) => { | |
| req.onerror = (e) => reject(e.target.error); | |
| req.onsuccess = (e) => resolve(e.target.result); | |
| }); | |
| } | |
| function openDBWithVersion(version) { | |
| return asPromise(indexedDB.open("foo", version, (db) => { | |
| console.log("running onversionupdate", db.oldVersion); | |
| switch (db.oldVersion) { | |
| case 0: // 0 -> 1 | |
| db.createObjectStore("person", {keyPath: "id"}); | |
| case 1: // 1 -> 2 | |
| var personStore = db.transaction.objectStore("person"); | |
| personStore.createIndex("name", "name"); | |
| } | |
| })); | |
| }; | |
| async function main() { | |
| try { | |
| await asPromise(indexedDB.deleteDatabase("foo")); | |
| } catch(err) {} | |
| const db = await openDBWithVersion(2); | |
| db.close(); | |
| try { | |
| await openDBWithVersion(1); | |
| } catch(e) { | |
| window.idberror = e; | |
| alert(JSON.stringify({message: e.message, name: e.name})); | |
| } | |
| } | |
| main().catch(e => { | |
| console.error(e); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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Fails with
The operation failed because the stored database is a higher version than the version requested.on FF.