Ticket #32783: 32783.2.diff

src/wp-admin/js/customize-controls.js

@@ -2331 +2331 @@
                                 api.HeaderTool.UploadsList,
                                 api.HeaderTool.DefaultsList
                         ]);
+
+                        //Add extra params to doCrop args for customizer
+                        wp.media.controller.Cropper.prototype.defaults.doCropArgs.wp_customize = 'on';
+                        wp.media.controller.Cropper.prototype.defaults.doCropArgs.theme = api.settings.theme.stylesheet;
                 },
 
                 /**

src/wp-includes/js/media-views.js

@@ -283 +283 @@
                 content:     'crop',
                 router:      false,
 
-                canSkipCrop: false
+                canSkipCrop: false,
+                //Default doCrop ajax arguments, which allow other to extend it
+                doCropArgs: {},
         },
 
         activate: function() {
@@ -367 +369 @@
         },
 
         doCrop: function( attachment ) {
-                return wp.ajax.post( 'custom-header-crop', {
-                        nonce: attachment.get('nonces').edit,
-                        id: attachment.get('id'),
-                        cropDetails: attachment.get('cropDetails')
-                } );
+                //clone the default args 
+                var data = _.clone( this.defaults.doCropArgs );
+                //Assign crop data
+                data.nonce = attachment.get('nonces').edit;
+                data.id = attachment.get('id');
+                data.cropDetails = attachment.get('cropDetails');
+
+                return wp.ajax.post( 'custom-header-crop', data );
         }
 });