serverSideCopyCapability top-level constant
String
const serverSideCopyCapability
Capability token advertised in the content server's GET /version
capabilities list when it can perform a verified server-side copy
(POST .../copy). Clients probe for this before reusing duplicate content
instead of re-transferring it, so older servers transparently fall back to
full byte transfers.
Implementation
const String serverSideCopyCapability = 'server-side-copy';