Laravel Set Active class

Hi all Im tyring to create a set active method for my category selection on my site so far i have the following

<li class="{{ setActiveCategory($category->slug) }}"><a href="{{ route('shop.index', ['category' => $category->slug]) }}">{{$category->name}}</a></li>

function setActiveCategory($category, $output = 'active'){
    return request()->category == $category ? $output : '';
 }

but i am using pagination so when i got to the second page the active state is removed

domain.com/products?page=2

is there any way to ignore the end of the url?