Problem – Zero-configuration popup was not working for the incoming connections.
What I followed
Flushed all DNS Cache using Cleanmymac application
Cleared all chrome cache
;XDEBUG settings in php.ini file zend_extension="/usr/local/Cellar/php/7.4.4/pecl/20190902/xdebug.so" xdebug.remote_autostart=1 xdebug.remote_enable=1 xdebug.remote_host=localhostproduction servers xdebug.remote_port=9004 ;apply same port 9004 at Preferences | Languages & Frameworks | PHP | Debug xdebug.idekey=PHPSTORM
Start Listening to PHP Debug Connection (phone type icon): you can find it under Run
Go to the website and just refresh the page and finally to popup should appear.