Open edit media on the same window

If you want that edit media should get open in the same tab, use the following piece of code in your theme’s functions.php file:

// Check if function doest not exists.
if ( ! function_exists( 'rtmedia_wp_footer_add_js_callback' ) ) {
	function rtmedia_wp_footer_add_js_callback() {
		?>
		<script type="text/javascript">
			jQuery(document).ready(function($) {
				// Event will fire when someone click on edit button of media.
				jQuery( 'body' ).on( 'click', '.rtmedia-gallery-item-actions a',function(){
					var target = jQuery( this ).attr( 'target' );

					// Checked for the target attribute if it exists or not and is also set to blank.
					if ( target != 'undefined' && target == '_blank' ) {

						// Replace the blank target attribute to self target attribute.
						jQuery( this ).attr( 'target', '_self' );
					}
				});
			});
		</script>
		<?php
	}
}
add_action( 'wp_footer', 'rtmedia_wp_footer_add_js_callback', 10, 1 );