+ * A pattern that recognizes a commonly useful subset of URLs that are safe.
+ *
+ * Shoutout to Angular 7 https://github.com/angular/angular/blob/7.2.4/packages/core/src/sanitization/url_sanitizer.ts
+ */
+
+ var SAFE_URL_PATTERN = /^(?:(?:https?|mailto|ftp|tel|file):|[^&:/?#]*(?:[/?#]|$))/gi;
+ /**
+ * A pattern that matches safe data URLs. Only matches image, video and audio types.
+ *
+ * Shoutout to Angular 7 https://github.com/angular/angular/blob/7.2.4/packages/core/src/sanitization/url_sanitizer.ts
+ */
+
+ var DATA_URL_PATTERN = /^data:(?:image\/(?:bmp|gif|jpeg|jpg|png|tiff|webp)|video\/(?:mpeg|mp4|ogg|webm)|audio\/(?:mp3|oga|ogg|opus));base64,[a-z0-9+/]+=*$/i;
+
+ function allowedAttribute(attr, allowedAttributeList) {
+ var attrName = attr.nodeName.toLowerCase();
+
+ if (allowedAttributeList.indexOf(attrName) !== -1) {
+ $link.addClass(ClassName$8.ACTIVE); // Set triggered links parents as active
+ // With both <ul> and <nav> markup a parent is the previous sibling of any nav ancestor
+
+ $link.parents(Selector$8.NAV_LIST_GROUP).prev(Selector$8.NAV_LINKS + ", " + Selector$8.LIST_ITEMS).addClass(ClassName$8.ACTIVE); // Handle special case when .nav-link is inside .nav-item