Function hasPrefix

source code/utils/sessionStoragePortable.ts:541–551

(
  src: Buffer,
  prefix: Buffer,
  at: number,
  end: number,
)

}

function hasPrefix(
  src: Buffer,
  prefix: Buffer,
  at: number,
  end: number,
): boolean {
  return (
    end - at >= prefix.length &&
    src.compare(prefix, 0, prefix.length, at, at + prefix.length) === 0
  )
}

const ATTR_SNAP_PREFIX = Buffer.from('{"type":"attribution-snapshot"')
const SYSTEM_PREFIX = Buffer.from('{"type":"system"')