How do i preserve pagination and selected filters?

While navigating through search results, to preserve the page number and selected filters follow the steps below based on your store:

• Magento 1
  1. In Magento Admin Panel, Go to System → Configuration 
  2. Go to General → Design → HTML Head → Miscellaneous Scripts
  3. Add the following script.

     <script type="text/javascript">
      var klevu_addPageNumberToUrl = true, 
          klevu_addSelectedFiltersToUrl = true;
     </script>

  4. Please clear Magento cache.
• Magento 2
  1. In Magento Admin Panel, Go to Content → Configuration 
  2. Edit the theme from the list which is enabled for the frontend.
  3. Go to  Footer → Miscellaneous HTML and paste the code
  4. Add the following script.

     <script type="text/javascript">
            var klevu_addPageNumberToUrl = true,
                klevu_addSelectedFiltersToUrl = true;
     </script>

  5. Please clear Magento cache.
• Custom stores ( Non-Magento) 
  1. Add the following script on your page.

     <script type="text/javascript">
          var klevu_addPageNumberToUrl = true, 
              klevu_addSelectedFiltersToUrl = true;
     </script>

• Shopify 
  1. Add the following script in theme.liquid file before closing the body tag.

     <script type="text/javascript">
          var klevu_addPageNumberToUrl = true, 
              klevu_addSelectedFiltersToUrl = true;
     </script>

• BigCommerce
  1. Add the following script in the base.html file before closing the body tag.

     <script type="text/javascript">
                 var klevu_addPageNumberToUrl = true, 
                 klevu_addSelectedFiltersToUrl = true;
     </script>