manages/displays ads. It’s only the ads that are displayed full page but in the background (probably with a smaller z-index) so you don’t see the ad except when certain parts of the website have breaks between divs or tables and then you can kind of see the ad. However, despite the ad being in the background (again probably because of a low z-point) it is served up as the first object to be available to clicks/touch from the user interaction.
The ad should not be able to dictate how it displays on the website. The website should tell the ads how to display and what behaviors to accept when within the website code. Who allows ads to do what they want within the website code? Does Jefe really just say, “here is your ad space-put your code here” but then doesn’t regulate what code is permissible which then lets bad actors put in code that supersedes the website code for being displayed on the client side?