WordPress/wp-includes/js/customize-base.js

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i==="undefined"?null:i;if(!this.url()||!this.targetWindow()){return}h={id:j,data:i};if(this.channel()){h.channel=this.channel()}this.targetWindow().postMessage(JSON.stringify(h),this.origin())}});d.extend(b.Messenger.prototype,b.Events);b=d.extend(new b.Values(),b);b.get=function(){var h={};this.each(function(j,i){h[i]=j.get()});return h};a.customize=b})(wp,jQuery);