When apo is enabled with w3tc the header goes missing - no cf-edge-cache: cache,platform=wordpress header
but when w3tc is deactivated this header comes back
does this mean w3tc should be removed and another cache plugin tried
or is there a tweak
the cf-cache header and cf-apo via tcache headers are there
Tried with another caching plugin; still APO header is missing
As I am not working with Wordpress I will tag @yevgen.