Ever since moving Ajax Search Pro onto an off-canvas sidebar, we’ve noticed that wheel scrolling appears to be disabled in the search results, requiring users to use the scrolling bar.
We are experiencing this issue in chromium based browsers (Opera, Google Chrome, Edge) but not in Firefox (in the Nightly).
I did a search of the support tickets and found the functions.php code you offered here, however after adding the code and clearing the cache this remains a problem for us.
(To access Ajax Search Pro at our website, click the menu tab to the left of the site logo in the upper left.)
Thank you for your help with this issue and please let me know if there is any additional information or access to the site you may need.