Feasibility understanding

I want to develop a safari extension for a study for a pet project website. I want to understand the challenges faced by the users while making searches on my e-commerce website. So the extension would basically trigger a survey when active on my website. If I were to understand what was searched on the website I would need to capture the url for the current page on they are on. Would this be possible? Would it comply with Apple regulation policies?

Feasibility understanding
 
 
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