Does wp super cache work with the mailster plugin?

Hello

Locally, I test the mailster plugin. I have a problem with creating a cache. If I have an iframe form in the article, everything works.

20:15:12 1284 /wp2/test-1/ wp_cache_get_cookies_values: return: 
20:15:12 1284 /wp2/test-1/ wp_cache_get_cookies_values: return: 
20:15:12 1284 /wp2/test-1/ wp_cache_check_mobile: localhost80/wp2/test-1/gzip
20:15:12 1284 /wp2/test-1/ supercache dir: C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/test-1/
20:15:12 1284 /wp2/test-1/ wp_cache_check_mobile: 
20:15:12 1284 /wp2/test-1/ No Super Cache file found for current URL: C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/test-1/index.html
20:15:12 1284 /wp2/test-1/ wp_cache_get_cookies_values: return: 
20:15:12 1284 /wp2/test-1/ wp_cache_check_mobile: localhost80/wp2/test-1/gzip
20:15:12 1284 /wp2/test-1/ In WP Cache Phase 2
20:15:12 1284 /wp2/test-1/ Setting up WordPress actions
20:15:12 1284 /wp2/test-1/ Created output buffer
20:15:12 1284 /wp2/test-1/ wp_cache_get_cookies_values: return: 
20:15:12 1284 /wp2/test-1/ wpcache_do_rebuild: doing rebuild for C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/test-1/
20:15:12 1284 /wp2/test-1/ wpcache_do_rebuild: exiting as directory is not a directory: C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/test-1/
20:15:14 1284 /wp2/test-1/ Output buffer callback
20:15:14 1284 /wp2/test-1/ wp_cache_get_cookies_values: return: 
20:15:14 1284 /wp2/test-1/ Anonymous user detected. Only creating Supercache file.
20:15:14 1284 /wp2/test-1/ wp_cache_get_cookies_values: return: 
20:15:14 1284 /wp2/test-1/ wp_cache_get_cookies_values: return: 
20:15:14 1284 /wp2/test-1/ wp_cache_check_mobile: 
20:15:14 1284 /wp2/test-1/ Gzipping buffer.
20:15:14 1284 /wp2/test-1/ Writing non-gzipped buffer to supercache file.
20:15:14 1284 /wp2/test-1/ Writing gzipped buffer to supercache file.
20:15:14 1284 /wp2/test-1/ Renamed temp supercache file to C:\wamp\www\wp2\wp-content\cache\supercache\localhost\wp2\test-1/index.html
20:15:14 1284 /wp2/test-1/ Renamed temp supercache gz file to C:\wamp\www\wp2\wp-content\cache\supercache\localhost\wp2\test-1/index.html.gz
20:15:14 1284 /wp2/test-1/ Writing gzip content headers. Sending buffer to browser
20:15:14 1284 /wp2/test-1/ wp_cache_shutdown_callback: collecting meta data.
20:15:14 1284 /wp2/test-1/ Sending 'Content-Type: text/html; charset="UTF-8"' header.
20:15:14 1284 /wp2/test-1/ Did not write meta file: meta-wp-cache-63d992075baf0ea760dd1f041baa4cff.php *1* *1* *1*
20:15:14 1284 /wp2/wp-admin/admin-ajax.php wp_cache_get_cookies_values: return: 
20:15:14 1284 /wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpg wp_cache_get_cookies_values: return: 
20:15:14 1284 /wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpg wp_cache_get_cookies_values: return: 
20:15:14 1284 /wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpg wp_cache_check_mobile: localhost80/wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpggzip
20:15:14 1284 /wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpg supercache dir: C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/wp-content/uploads/2017/04/20170405_115209-%e2%80%94-kopia-86x64.jpg/
20:15:14 1284 /wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpg wp_cache_check_mobile: 
20:15:14 1284 /wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpg No Super Cache file found for current URL: C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/wp-content/uploads/2017/04/20170405_115209-%e2%80%94-kopia-86x64.jpg/index.html
20:15:14 1284 /wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpg wp_cache_get_cookies_values: return: 
20:15:14 1284 /wp2/wp-content/uploads/2017/02/kryszta%C5%82y-86x64.jpg wp_cache_get_cookies_values: return: 
20:15:14 1284 /wp2/wp-content/uploads/2017/02/kryszta%C5%82y-86x64.jpg wp_cache_check_mobile: localhost80/wp2/wp-content/uploads/2017/02/kryszta%C5%82y-86x64.jpggzip
20:15:14 1284 /wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpg wp_cache_check_mobile: localhost80/wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpggzip
20:15:14 1284 /wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpg supercache dir: C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/wp-content/uploads/2017/03/orygina%c5%821-86x64.jpg/
20:15:14 1284 /wp2/wp-content/uploads/2017/02/kryszta%C5%82y-86x64.jpg supercache dir: C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/wp-content/uploads/2017/02/kryszta%c5%82y-86x64.jpg/
20:15:14 1284 /wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpg wp_cache_check_mobile: 
20:15:14 1284 /wp2/wp-content/uploads/2017/02/kryszta%C5%82y-86x64.jpg wp_cache_check_mobile: 
20:15:14 1284 /wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpg No Super Cache file found for current URL: C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/wp-content/uploads/2017/03/orygina%c5%821-86x64.jpg/index.html
20:15:14 1284 /wp2/wp-content/uploads/2017/02/kryszta%C5%82y-86x64.jpg No Super Cache file found for current URL: C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/wp-content/uploads/2017/02/kryszta%c5%82y-86x64.jpg/index.html
20:15:14 1284 /wp2/wp-admin/admin-ajax.php wp_cache_get_cookies_values: return: 
20:15:14 1284 /wp2/wp-content/plugins/mailster/form.php?id=5&iframe=1&design=default&showcount=0&width=480&button=1&label=Zapisz%20si%C4%99&origin=http%3A%2F%2Flocalhost&referer=http%3A%2F%2Flocalhost%2Fwp2%2Ftest-1%2F wp_cache_get_cookies_values: return: 
20:15:14 1284 /wp2/wp-content/plugins/mailster/form.php?id=5&iframe=1&design=default&showcount=0&width=480&button=1&label=Zapisz%20si%C4%99&origin=http%3A%2F%2Flocalhost&referer=http%3A%2F%2Flocalhost%2Fwp2%2Ftest-1%2F Non empty GET request. Caching disabled on settings page. {"id":"5","iframe":"1","design":"default","showcount":"0","width":"480","button":"1","label":"Zapisz si\u0119","origin":"http:\/\/localhost","referer":"http:\/\/localhost\/wp2\/test-1\/"}
20:15:15 1284 /wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpg wp_cache_get_cookies_values: return: 
20:15:15 1284 /wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpg wp_cache_check_mobile: localhost80/wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpggzip
20:15:15 1284 /wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpg In WP Cache Phase 2
20:15:15 1284 /wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpg Setting up WordPress actions
20:15:15 1284 /wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpg Created output buffer
20:15:15 1284 /wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpg wp_cache_get_cookies_values: return: 
20:15:15 1284 /wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpg wpcache_do_rebuild: doing rebuild for C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/wp-content/uploads/2017/04/20170405_115209-%e2%80%94-kopia-86x64.jpg/
20:15:15 1284 /wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpg wpcache_do_rebuild: exiting as directory is not a directory: C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/wp-content/uploads/2017/04/20170405_115209-%e2%80%94-kopia-86x64.jpg/
20:15:16 1284 /wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpg Output buffer callback
20:15:16 1284 /wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpg 404 file not found not cached
20:15:16 1284 /wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpg wp_cache_maybe_dynamic: returned $buffer
20:15:16 1284 /wp2/wp-content/uploads/2017/04/20170405_115209-%E2%80%94-kopia-86x64.jpg wp_cache_shutdown_callback: No cache file created. Returning.
20:15:16 1284 /wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpg wp_cache_get_cookies_values: return: 
20:15:16 1284 /wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpg wp_cache_check_mobile: localhost80/wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpggzip
20:15:16 1284 /wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpg In WP Cache Phase 2
20:15:16 1284 /wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpg Setting up WordPress actions
20:15:16 1284 /wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpg Created output buffer
20:15:16 1284 /wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpg wp_cache_get_cookies_values: return: 
20:15:16 1284 /wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpg wpcache_do_rebuild: doing rebuild for C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/wp-content/uploads/2017/03/orygina%c5%821-86x64.jpg/
20:15:16 1284 /wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpg wpcache_do_rebuild: exiting as directory is not a directory: C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/wp-content/uploads/2017/03/orygina%c5%821-86x64.jpg/
20:15:17 1284 /wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpg Output buffer callback
20:15:17 1284 /wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpg 404 file not found not cached
20:15:17 1284 /wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpg wp_cache_maybe_dynamic: returned $buffer
20:15:17 1284 /wp2/wp-content/uploads/2017/03/orygina%C5%821-86x64.jpg wp_cache_shutdown_callback: No cache file created. Returning.
20:15:17 1284 /wp2/wp-content/uploads/2017/02/kryszta%C5%82y-86x64.jpg wp_cache_get_cookies_values: return: 
20:15:17 1284 /wp2/wp-content/uploads/2017/02/kryszta%C5%82y-86x64.jpg wp_cache_check_mobile: localhost80/wp2/wp-content/uploads/2017/02/kryszta%C5%82y-86x64.jpggzip
20:15:17 1284 /wp2/wp-content/uploads/2017/02/kryszta%C5%82y-86x64.jpg In WP Cache Phase 2
20:15:17 1284 /wp2/wp-content/uploads/2017/02/kryszta%C5%82y-86x64.jpg Setting up WordPress actions
20:15:17 1284 /wp2/wp-content/uploads/2017/02/kryszta%C5%82y-86x64.jpg Created output buffer
20:15:17 1284 /wp2/wp-content/uploads/2017/02/kryszta%C5%82y-86x64.jpg wp_cache_get_cookies_values: return: 
20:15:17 1284 /wp2/wp-content/uploads/2017/02/kryszta%C5%82y-86x64.jpg wpcache_do_rebuild: doing rebuild for C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/wp-content/uploads/2017/02/kryszta%c5%82y-86x64.jpg/
20:15:17 1284 /wp2/wp-content/uploads/2017/02/kryszta%C5%82y-86x64.jpg wpcache_do_rebuild: exiting as directory is not a directory: C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/wp-content/uploads/2017/02/kryszta%c5%82y-86x64.jpg/

But if the form is inserted normally or using a short code, the page with the cache is not created.

20:27:49 1284 /wp2/test-2/ wp_cache_get_cookies_values: return: 
20:27:49 1284 /wp2/test-2/ wp_cache_get_cookies_values: return: 
20:27:49 1284 /wp2/test-2/ wp_cache_check_mobile: localhost80/wp2/test-2/gzip
20:27:49 1284 /wp2/test-2/ supercache dir: C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/test-2/
20:27:49 1284 /wp2/test-2/ wp_cache_check_mobile: 
20:27:49 1284 /wp2/test-2/ No Super Cache file found for current URL: C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/test-2/index.html
20:27:49 1284 /wp2/test-2/ wp_cache_get_cookies_values: return: 
20:27:49 1284 /wp2/test-2/ wp_cache_check_mobile: localhost80/wp2/test-2/gzip
20:27:49 1284 /wp2/test-2/ In WP Cache Phase 2
20:27:49 1284 /wp2/test-2/ Setting up WordPress actions
20:27:49 1284 /wp2/test-2/ Created output buffer
20:27:49 1284 /wp2/test-2/ wp_cache_get_cookies_values: return: 
20:27:49 1284 /wp2/test-2/ wpcache_do_rebuild: doing rebuild for C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/test-2/
20:27:49 1284 /wp2/test-2/ wpcache_do_rebuild: exiting as directory is not a directory: C:\wamp\www\wp2\wp-content/cache/supercache/localhost/wp2/test-2/
20:27:50 1284 /wp2/test-2/ DONOTCACHEPAGE defined. Caching disabled.
20:27:50 1284 /wp2/test-2/ wp_cache_maybe_dynamic: returned $buffer
20:27:51 1284 /wp2/wp-admin/admin-ajax.php wp_cache_get_cookies_values: return: 
20:27:51 1284 /wp2/wp-admin/admin-ajax.php wp_cache_get_cookies_values: return: 
20:27:51 1284 /wp2/wp-admin/admin-ajax.php wp_cache_get_cookies_values: return: 
20:27:51 1284 /wp2/wp-admin/admin-ajax.php wp_cache_check_mobile: localhost80
20:27:51 1284 /wp2/wp-admin/admin-ajax.php In WP Cache Phase 2
20:27:51 1284 /wp2/wp-admin/admin-ajax.php Setting up WordPress actions
20:27:51 1284 /wp2/wp-admin/admin-ajax.php Not caching wp-admin requests.
20:27:52 1284 /wp2/wp-admin/admin-ajax.php wp_cache_get_cookies_values: return: 
20:27:52 1284 /wp2/wp-admin/admin-ajax.php wp_cache_check_mobile: localhost80
20:27:52 1284 /wp2/wp-admin/admin-ajax.php In WP Cache Phase 2
20:27:52 1284 /wp2/wp-admin/admin-ajax.php Setting up WordPress actions
20:27:52 1284 /wp2/wp-admin/admin-ajax.php Not caching wp-admin requests.

What’s the problem?