update

layout/includes/third-party/abcjs/abcjs.pug

@@ -2,8 +2,11 @@ script.
   (() => {
     const abcjsInit = () => {
       const abcjsFn = () => {
+        const $article = document.getElementById("article-container")
+        if (!$article || $article.querySelector(".hbe-container")) return
+
         setTimeout(() => {
-          const sheets = document.querySelectorAll(".abc-music-sheet")
+          const sheets = $article.querySelectorAll(".abc-music-sheet")
           for (let i = 0; i < sheets.length; i++) {
             const ele = sheets[i]
             if (ele.children.length > 0) continue
@@ -29,7 +32,7 @@ script.
         }, 100)
       }
 
-      if (typeof ABCJS === "object") {
+      if (typeof ABCJS === "object" && ABCJS !== null) {
         abcjsFn()
       } else {
         btf.getScript("!{url_for(theme.asset.abcjs_basic_js)}").then(abcjsFn)

layout/includes/third-party/chat/knocket.pug

@@ -1,14 +1,15 @@
 //- Knocket live chat — https://trtc.io/solutions/knocket
 script.
   (() => {
-    const id = '#{theme.knocket.identifier}'
-    if (!id) return
+    const identifier = !{JSON.stringify(theme.knocket.identifier || '').replace(/</g, '\\u003c')}
+    if (!identifier) return
 
-    btf.getScript(`https://trtc.io/knocket-sdk/sdk.js?identifier=${id}`).then(() => {
+    btf.getScript(`https://trtc.io/knocket-sdk/sdk.js?identifier=${encodeURIComponent(identifier)}`).then(() => {
       const isChatBtn = !{theme.chat.rightside_button}
       const isChatHideShow = !{theme.chat.button_hide_show}
 
-      const getWidget = () => document.getElementById('contact-widget-auto')
+      let widget = null
+      const getWidget = () => widget || (widget = document.getElementById('contact-widget-auto'))
 
       if (isChatBtn) {
         const hide = () => { const w = getWidget(); if (w) w.style.display = 'none' }
@@ -24,21 +25,18 @@ script.
         window.chatBtnFn = () => {
           const w = getWidget()
           if (!w) return
-          if (w.style.display === 'none') show()
-          else hide()
+          w.style.display = w.style.display === 'none' ? '' : 'none'
         }
 
-        document.getElementById('chat-btn').style.display = 'block'
+        const chatBtn = document.getElementById('chat-btn')
+        if (chatBtn) chatBtn.style.display = 'block'
       } else if (isChatHideShow) {
-        const observer = new MutationObserver(() => {
-          if (getWidget()) observer.disconnect()
-        })
-        observer.observe(document.body, { childList: true, subtree: true })
-
         window.chatBtn = {
           hide: () => { const w = getWidget(); if (w) w.style.display = 'none' },
           show: () => { const w = getWidget(); if (w) w.style.display = '' }
         }
       }
+    }).catch(error => {
+      console.warn('[Knocket] Failed to load the chat SDK.', error)
     })
   })()

layout/includes/third-party/math/mathjax.pug

@@ -15,7 +15,7 @@ script.
 
     const loadMathjax = () => {
       const article = document.getElementById('article-container')
-      if (!article) return
+      if (!article || article.querySelector('.hbe-container')) return
       changeScriptToMath(article)
 
       if (!window.MathJax) {