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RTCError: sentAlert property - Web APIs | MDN
RTCError: sentAlert property Limited availability
The read-only sentAlertRTCErrorDTLS alert number occurred
while sending data to the remote peer, if the error represents an outbound DTLS error.
An unsigned integer value providing the DTLS alert number corresponding to the DTLS
error which was sent to the remote peer, as represented by this RTCError
object. This property is null if errorDetaildtls-failure.
