(function() {
  var primary = "{{ primary_domain }}";
  var allowedOrigin = "https://{{ domains | get_domain('web-app-port-ui') }}";

  function notifyParent() {
    try {
      window.parent.postMessage({
        type: "iframeLocationChange",
        href: window.location.href
      }, allowedOrigin);
    } catch (e) {}
  }

  function forceExternalLinks() {
    Array.prototype.forEach.call(document.querySelectorAll("a[href]"), function(a) {
      try {
        var url = new URL(a.href, location);
        if (!url.hostname.endsWith(primary)) {
          a.target = "_blank";
          a.rel = "noopener";
        }
      } catch (e) {}
    });
  }

  window.addEventListener("load", function() {
    notifyParent();
    forceExternalLinks();
  });
  window.addEventListener("popstate", function() {
    notifyParent();
    forceExternalLinks();
  });

  // SPA support
  var _pushState = history.pushState;
  history.pushState = function() {
    _pushState.apply(history, arguments);
    notifyParent();
    forceExternalLinks();
  };
})();

{% if enable_debug | bool %}
console.log("[iframe-sync] Sender for iframe messages is active.");
{% endif %}