indexedDB API grammatical error

3.1.3 Keys

(...)

Operations that accept keys must perform as if each key parameter value, in
order, is copied *by the by the* structured clone algorithm [HTML5] and the
copy is instead used as input to the operation, before proceding with rest
of the operation.

Link: https://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html



Att,
Danillo