That makes sense but I don't think any third party would pay to be included in a iframe and fed such a limited amount of data, and if you aren't paid for it why bother making all of your users mad in order to do it?
I think we have different use cases in mind. I'm thinking of services which are free or which companies pay for to gain access to. Things like Facebook/DoubleClick for ad-retargeting and Google Analytics.
Agreed that this does nothing for users that don't want to be tracked, but at least it reduces the risk of the site being compromised by untrusted JS.
Agreed that this does nothing for users that don't want to be tracked, but at least it reduces the risk of the site being compromised by untrusted JS.