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How to Configure Cookie Cache Vary
Example: assume you have a woocommerce site and bring “woocommerce_products_per_page” cookie which should vary from user to user, and you should not serve everyone with the same cache file.
and there are two ways to accomplish this: a javascript-based plugin, and cache vary rewrite rules.
The more efficient option is a javascript-based solution. A javascript plugin would only need to store one copy of the page and would build the display based on the existence of the cookie. If a rewrite rule-based answer is preferred, the site can be configured to vary on the cookie by adding the following rule to your site's .htaccess file:
<IfModule LiteSpeed> CacheLookup on RewriteRule .* - [E=Cache-Vary:woocommerce_products_per_page] </IfModule>
When user visit woocommerce site with woocommerce_products_per_page=xxxxxx
cookie will be created. Using the rewrite rule above, the cache will vary on that cookie. This means the cache will store two copies: one that shows the yellow bar at the bottom, and one that does not.