Checkout page not bypassing cache

I have a site using Easy Digital Downloads where I have set a page rule to bypass the cache on the checkout page. The rule is set like this:

*thedomain.com/checkout*

Cache Level: Bypass

However, when I ping the page I get the following response:

cf-cache-status: DYNAMIC

I would expect (I think) the cache status to return BYPASS.

My question is: have I set the page rule incorrectly somehow and why am I seeing DYNAMIC instead of BYPASS?

Many thanks for any assistance.

DYNAMIC is fine, this indicates the content will not be cached. I confirmed that this happens when I use a page rule to bypass something that was previously cached.

Okay, thanks for confirming.