in src/modules/components/viewer.js [221:234]
function onViewerLoad(e) {
var iframeLocation = e.target.contentWindow.location;
if (iframeLocation.origin !== 'null' || iframeLocation.protocol.indexOf('http') !== -1) {
currentViewerUrl = iframeLocation.origin + iframeLocation.pathname;
addBlankToLinks();
}
if (currentViewPortName === 'reader') {
enableReader();
}
if (currentViewPortName === 'social-share') {
enableSocialShare();
}
}