User blog comment:Dragonjet/KC3改/@comment-26291515-20150720065619/@comment-26091666-20150720072234

At this point, individual counting of sinking cv(l) or transports for instance would never get implemented mainly because extensions such as kc3 kai are not allowed to directly read nor edit the response body that chrome was given from the server.

You know, you could help out by starring the said limitations of this viewer and therefore unlock the potential for the viewer to be a full fledged viewer similar to other popular viewers as pointed out here:
 * WebRequest API: allow extensions to read response body
 * WebRequest API: allow extensions to edit response body