SERVERSSL_CLIENTHELLO_SEND Events

Will the SERVERSSL_CLIENTHELLO_SEND event triggered for every HTTP_REQUEST ? If not, Is there any other way to trigger SERVERSSL_CLIENTHELLO_SEND event for every request ?

I have a requirement to dynamically construct SNI header based on the URI reqPath. The SNI injection happens in SERVERSSL_CLIENTHELLO_SEND event. This works find when the end points are triggered separately via Rest Client / PostMan. But when the end points are invoked in a browser within the same session then both the requests are set with same SNI and suspecting the SERVERSSL_CLIENTHELLO_SEND is triggered only for the first request.