WP Rocket - Currency Not Changing in Products Page

Overview of the issue

If you are using WP Rocket plugin, you may notice that currency changes on product pages are not being reflected immediately. Instead, the currency only updates after refreshing the page.

Workaround

Please, make sure of having a full site backup of your site before proceeding.

Option 1

• Go to Settings > WP Rocket page.
• Then in Advanced rules > Never Cache Cookies section, add this cookie:
  wcml_client_currency

Option 2

• Add the following code into your theme’s functions.php file:

  /*
  compsupp-7372
  This filter adds ?wcmlc={currency_code} to the URL, which specifies a query string with the currency code.
  */
  add_filter( 'wcml_is_cache_enabled_for_switching_currency', '__return_true' );