Read only routing

Hi guys,

We have a 2 node's SQL 2016 AG, I have confiure the Read-only route  and put both SQL servers in Readable secondary.

My understaing is that all of the select statements should go through the secondary node, but when I run the SQL profiler I can see that still all of the select statements go throuw the primery Node.

Application that we use dont have string value to put it at readonly or read intent only.

Could it this be the reson we see any slect goes through the secondary node?

Thanks

Shahin