event argument has no target.result property on IDBRequest: success event

[mcshaz]

TypeScript Version: 3.4.0-dev.201
updated mar 1 & still no fix
https://github.com/Microsoft/TypeScript/blob/00bf32ca3967b07e8663d0cd2b3e2bbf572da88b/lib/lib.webworker.d.ts
goto line 1860

Search Terms:
onsuccess target result eventtarget idbrequest

Code
please note this code is a cut & past from https://developer.mozilla.org/en-US/docs/Web/API/IndexedDB_API/Using_IndexedDB#Generating_handlers

var request = indexedDB.open("MyTestDatabase");
request.onsuccess = function(event) {
  db = event.target.result;
};

Expected behavior:
no error

Actual behavior:
error TS2339: Property 'result' does not exist on type 'EventTarget'

Playground Link: N/A

Related Issues:
FileReader.onLoad/onLoadEnd event argument has no target.result property #4163 (Fixed)
IDBOpenDBRequest.onupgradeneeded also needs the same augmentation
IDBTransaction.onerror event.target.error will most likely also need type definitions updated

[grzegorzjudas]

Looks like this issue is still there. Have you been able to resolve it somehow?

[jibi966]

Hi, is there any progress on this bug? I can't actually catch some DOM Exception due to this. (currently maintaining by @ts-ignore)

[randomchars42]

seems related to #28293

there's a workaround mentioned