IndexedDB update multiple record

Question

I am using indexedDB, and I have a orderProductIndex index inside the order_items collection. The index is not unique!

What I want to do is, select every record from the index with a specific id, and update their timestamp value. I can update one record easily, but I can't the others.

First I was try to get all records, iterate them manually and update them one by one, but this don't work, 0 element was updated.

index.getAll([order_id, product_id]).onsuccess = (event) => {
    $.each(event.target.result, function (index, item) {
        item.timestamp = Date.now();
        objectStore.put(item).onsuccess = function (event) {
            console.log('item updated')
            console.log(event.target.result)
            resolve();
        }
    });
    resolve();
}

Second attempt was the iterate them through with a cursor and use the cursor's update method, so far this was the best approach, this updates only one element, if there were multiple elements it seems like a get in an endless loop, end never get logged out,

let index = objectStore.index("orderProductIndex");

let keyRange = IDBKeyRange.only([order_id, product_id]);

let request = index.openCursor(keyRange);

request.onsuccess = function (event) {
    console.log('cursor opened');

    let cursor = event.target.result;

    if (cursor) {
        let record = cursor.value;

        record.timestamp = Date.now();

        console.log(record);

        let request = cursor.update(record);

        cursor.continue();

    }
    else {
        console.log('end')
        resolve();
    }
}

So now I replace the cursor.continue() with resolve() and one element always gets updated successfully, any idea what I am doing wrong? Any help would be appreciated.