Country and Phone Field not working with cache plugins

Hello I noticed that your plugin does not work with caching plugins, in particular the following function does not work when selecting a country, the code of the country itself is inserted into the field, for example, when selecting the country Spain, the code +34 should be inserted in the field, but when any caching plugin is enabled, where the browser cache is used The country code does not appear, that is, I select the country and the code +34 is not inserted into the field. If you disable the browser cache on the site, then everything works, but with the browser cache disabled, the site works much slower. You can solve this problem in your plugin, because almost all WordPress sites now use caching plugins and your plugin does not work correctly with them.