Retry when response is empty

[Spike]

How can i retry on empty Response Source?
I don't know how to check and retry when i do have Calculated header: Content-Length: 0
Thing is i always get 200 OK response code but it's empty, maybe im doing too many requests it skips probably idk...
Can somebody help? thanks !

[Fairy]

Try this

KEYCHECK 
  KEYCHAIN Retry OR 
    KEY "<SOURCE>" EqualTo "" 

[Spike]

Oh i just have to put equal nothing, that's it thanks !

[Ruri]

Or you can do KEY "<HEADERS(Content-Length)>" EqualTo "0"