Debugging Varnish's hit_for_pass objects
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I am new to Varnish and I am struggling to see why so many requests are either a `miss`, or `hit_for_pass`.

I have added `unset req.http.Cookie;` inside `vcl_recv` to (if I am right) effectively ignore all Cookies and cache regardless of Cookies? Is this right?

But despite this I am still getting no `hits`. So this Cookie approach is either wrong or there is an entirely different reason why this is not working.

Any ideas on this, or is there a way to see exactly why I am getting `hit_for_pass` or `miss` so often.

Thanks
Jake