https://lists.w3.org/Archives/Public/public-webapps/2010JanMar/0884.html
Re: [IndexedDB] IDBRequest Interface Questions from Shawn Wilsher on 2010-03-22...
https://developer.mozilla.org/en-US/docs/Web/API/IDBRequest/readyState
IDBRequest: readyState property - Web APIs | MDN
The readyState read-only property of the IDBRequest interface returns the state of the request.
web apispropertymdn
https://bugzilla.mozilla.org/show_bug.cgi?id=1861102
1861102 - Expand exact error stack propagation in dom/indexedDB/IDBRequest.cpp
NEW (nobody) in Core - Storage: IndexedDB. Last updated 2023-10-25.
expandexacterrorstack