Database deleted by request of the user (indexeddb)

The first time I saw this error in Sentry, my heart dropped to my feet. It wasn't clear that this was a client error and my initial thought was: how is someone attempting to delete a database?!

Database deleted by request of the user

As I looked through the stack trace, I realized it was an error for IndexedDB, which is the storage mechanism we use forMurmur Labs to store proposal edits in the client before sending them to the server.