N){const e=r.createElement("template");e.content&&e.content.ownerDocument&&(r=e.content.ownerDocument)}let le,ce="";const{implementation:se,createNodeIterator:ue,createDocumentFragment:me,getElementsByTagName:pe}=r,{importNode:fe}=a;let de={afterSanitizeAttributes:[],afterSanitizeElements:[],afterSanitizeShadowDOM:[],beforeSanitizeAttributes:[],beforeSanitizeElements:[],beforeSanitizeShadowDOM:[],uponSanitizeAttribute:[],uponSanitizeElement:[],uponSanitizeShadowNode:[]};o.isSupported="function"==typeof...

        // Register hook once: add rel="nofollow" to links, restrict class to code/pre/span/div
        // (matches server-side requireRelNofollowOnLinks and allowAttributes("class").onElements(...))
        DOMPurify.addHook('afterSanitizeAttributes', function(node) {
            if (node.tagName === 'A' && node.hasAttribute('href')) {
                node.setAttribute('rel', 'nofollow');
            }
            if (node.hasAttribute('class')) {