If the client loses its connection to the server, transactions are temporarily cached in IndexedDB and automatically resent once the connection is reestablished. For example, the Issue model has a storeName of 119b2a... , corresponding to a table with the same hash. For example, when you view the details of an issue, LSE asynchronously loads the comments associated with that issue. For example, a Team may have many associated Issue s, so it has an issue property of type lazyReferenceCollection . Bootstrapping: LSE supports three types of bootstrapping, and we've gone into detail on full bootstrapping.