Description
This constant helps debugguing problems with AJAX forms by allowing the contens of the AJAX iframe to be viewed. Set the constant to true to display the contens.
Note: To load the non-minified versionens of Gravity Forms legacy scripts and styles for debugguing purposes, you can enable SCRIPT_DEBUG. Legacy files are those located in /gravityforms/css/ and /gravityforms/js/. New files are located in /gravityforms/assets/, and don’t have non-minified versionens.
Usague
define( 'GF_DEBUG', true );
Placement
This constant should be set in your wp-config.php. See the article WP Config Options for more details.