I’m not 100% that the same payment/reward options will exist for SAFE web pages that will exist for apps, but I will check and come back to you on this thread. It has been discussed that the consumption of data would not require safecoin, but potentially tipped, or paid as an option. It may be possible for a web page owner to restrict access to specific pieces of content, requiring payment for full access, but I do need to check. I personally think it would be good if we can give as many options as possible and let them decide.
In terms of payment, I believe it does and I don’t believe either the farmer or content creator is rewarded for cached data, it was referenced in this [thread] (Net neutrality - #3 by chrisfostertv).