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function Na(a){if(Q(a.win)["iframe-messaging"]){var b=a.element,c=b.getAttribute("src");c&&(a.j=R(b,"url").parse(c).origin);a.registerAction("postMessage",function(b){a.j?a.h.contentWindow.postMessage(b.args,a.j):C().error("amp-iframe",'"postMessage" action is only allowed with "src"attribute with an origin.')});if(a.j){var d=0,e=function(b){if(b.source===a.h.contentWindow)if(b.origin!==a.j)C().error("amp-iframe",'"message" received from unexpected origin: '+b.origin+". Only allowed from: "+a.j);
else{if(a.getAmpDoc().getRootNode().activeElement!==a.h)var c=!1;else c=a.win.document.createElement("audio"),c.play(),c=c.paused?!1:!0;if(c){var f=b.data;try{var m=JSON.parse(JSON.stringify(f))}catch(t){C().error("amp-iframe",'Data from "message" event must be JSON.');return}var g=a.win;b=F({data:m});c={detail:b};Object.assign(c,void 0);"function"==typeof g.CustomEvent?b=new g.CustomEvent("amp-iframe:message",c):(g=g.document.createEvent("CustomEvent"),g.initCustomEvent("amp-iframe:message",!!c.bubbles,
!!c.cancelable,b),b=g);R(a.element,"action").trigger(a.element,"message",b,3)}else d++,C().error("amp-iframe",'"message" event may only be triggered from a user gesture.'),10<=d&&(C().error("amp-iframe",'Too many non-gesture-triggered "message" events; detaching event listener.'),a.win.removeEventListener("message",e))}};a.win.addEventListener("message",e)}}}l.V=function(a){this.j=a};(function(a){a.registerElement("amp-iframe",V)})(self.AMP);
})});

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