Blank Screen and ERR_CONNECTION_CLOSED on WordPress Astra Theme Customizer
Hello,
I am experiencing a blank screen and ERR_CONNECTION_CLOSED errors (status 200 OK) specifically when trying to use the WordPress Astra Theme Customizer. These errors appear in the browser console for admin-ajax.php and various Astra JS files.
I have already attempted the following without success:
- Increased PHP Memory Limit to 512M and max_execution_time to 300.
- Added SubstituteMaxLineLength 20M to .htaccess as suggested by Astra documentation (https://wpastra.com/docs/blank-screen/).
- Set define( 'CONCATENATE_SCRIPTS', false ); in wp-config.php.
- Disabled all other plugins.
- Attempted to force-disable Astra’s modern React controls via filters.
Could you please check if there is a ModSecurity rule, Proxy buffer limit or any other thing on my account that is terminating these connections?
Thank you!