code: function doCategory(category) {
  	check(http.get(category.url), {
  		"title is correct": (res) => res.html("title").text() == category.title,
  	});
  
  	for (prodName in category.products) {
  		if (Math.random() <= category.products[prodName].chance) {
  			group(prodName, function() { doProductPage(category.products[prodName]) });
  		}
  	}
  }
docs: Load a product category page, then potentially load some product pages