https://bugs.winehq.org/show_bug.cgi?id=49890
--- Comment #3 from Hans Leidekker hans@meelstraat.net --- (In reply to David Torok from comment #2)
More testing will be needed to see if this was fixed at some point, as I cannot reproduce this on 5.17 at this time. (To test this with Runeterra on 5.17, the staging patch "ntdll-NtQueryVirtualMemory" needs to be rebased, which I will try to submit separately)
If it's using winhttp websockets, note that support was added in Wine 5.12.