Searching blog articles that are behind a paywall

My site uses the paywall feature for blog articles which sadly seems to prevent the built-in squarespace search feature from working.

Is there a custom-CSS or plugin fix to enable users to search behind the paywall for keywords or specific questions?

Even just searching the titles of articles would be better than nothing (although being able to search the entire content of the articles is even more ideal!).

Elfsight unfortunately does not work with the paywall. 

Thanks in advance ~