diff --git a/src/snek/static/message-list.js b/src/snek/static/message-list.js
index 26f0999..506ed52 100644
--- a/src/snek/static/message-list.js
+++ b/src/snek/static/message-list.js
@@ -5,64 +5,65 @@
 // The code seems to rely on some external dependencies like 'models.Message', 'app', and 'Schedule'. These should be imported or defined elsewhere in your application.
 
 // MIT License: This is free software. Permission is granted to use, copy, modify, and/or distribute this software for any purpose with or without fee. The software is provided "as is" without any warranty.
-import {app} from "./app.js";
+import { app } from "./app.js";
 
-const LONG_TIME = 1000 * 60 * 20
+const LONG_TIME = 1000 * 60 * 20;
 
 export class ReplyEvent extends Event {
-    constructor(messageTextTarget) {
-      super('reply', { bubbles: true, composed: true });
-      this.messageTextTarget = messageTextTarget;
+  constructor(messageTextTarget) {
+    super('reply', { bubbles: true, composed: true });
+    this.messageTextTarget = messageTextTarget;
 
-      const newMessage = messageTextTarget.cloneNode(true);
-      newMessage.style.maxHeight = "0"
-      messageTextTarget.parentElement.insertBefore(newMessage, messageTextTarget);
+    // Clone and sanitize message node to text-only reply
+    const newMessage = messageTextTarget.cloneNode(true);
+    newMessage.style.maxHeight = "0";
+    messageTextTarget.parentElement.insertBefore(newMessage, messageTextTarget);
 
-      newMessage.querySelectorAll('.embed-url-link').forEach(link => {
-        link.remove()
-      })
+    // Remove all .embed-url-link
+    newMessage.querySelectorAll('.embed-url-link').forEach(link => link.remove());
 
-      newMessage.querySelectorAll('picture').forEach(picture => {
-        const img = picture.querySelector('img');
-        if (img) {
-          picture.replaceWith(img);
-        }
-      })
+    // Replace <picture> with their <img>
+    newMessage.querySelectorAll('picture').forEach(picture => {
+      const img = picture.querySelector('img');
+      if (img) picture.replaceWith(img);
+    });
 
-      newMessage.querySelectorAll('img').forEach(img => {
-        const src = img.src || img.currentSrc;
-        img.replaceWith(document.createTextNode(src));
-      })
+    // Replace <img> with just their src
+    newMessage.querySelectorAll('img').forEach(img => {
+      const src = img.src || img.currentSrc;
+      img.replaceWith(document.createTextNode(src));
+    });
 
-      newMessage.querySelectorAll('iframe').forEach(iframe => {
-        const src = iframe.src || iframe.currentSrc;
-        iframe.replaceWith(document.createTextNode(src));
-      })
+    // Replace <iframe> with their src
+    newMessage.querySelectorAll('iframe').forEach(iframe => {
+      const src = iframe.src || iframe.currentSrc;
+      iframe.replaceWith(document.createTextNode(src));
+    });
 
-      newMessage.querySelectorAll('a').forEach(a => {
-        const href = a.getAttribute('href');
-        const text = a.innerText || a.textContent;
-        if (text === href || text === '') {
-          a.replaceWith(document.createTextNode(href));
-        } else {
-          a.replaceWith(document.createTextNode(`[${text}](${href})`));
-        }
-      })
+    // Replace <a> with href or markdown
+    newMessage.querySelectorAll('a').forEach(a => {
+      const href = a.getAttribute('href');
+      const text = a.innerText || a.textContent;
+      if (text === href || text === '') {
+        a.replaceWith(document.createTextNode(href));
+      } else {
+        a.replaceWith(document.createTextNode(`[${text}](${href})`));
+      }
+    });
 
-      this.replyText = newMessage.innerText.replaceAll("\n\n", "\n").trim();
-      newMessage.remove()
-    }
+    this.replyText = newMessage.innerText.replaceAll("\n\n", "\n").trim();
+    newMessage.remove();
+  }
 }
 
 class MessageElement extends HTMLElement {
-  // static observedAttributes = ['data-uid', 'data-color', 'data-channel_uid', 'data-user_nick', 'data-created_at', 'data-user_uid'];
-
   updateUI() {
     if (this._originalChildren === undefined) {
-      const { color,  user_nick, created_at, user_uid} = this.dataset;
+      const { color, user_nick, created_at, user_uid } = this.dataset;
       this.classList.add('message');
       this.style.maxWidth = '100%';
       this._originalChildren = Array.from(this.children);
+
       this.innerHTML = `
         <a class="avatar" style="background-color: ${color || ''}; color: black;" href="/user/${user_uid || ''}.html">
           <img class="avatar-img" width="40" height="40" src="/avatar/${user_uid || ''}.svg" alt="${user_nick || ''}" loading="lazy">
@@ -72,27 +73,28 @@ class MessageElement extends HTMLElement {
           <div class="text"></div>
           <div class="time no-select" data-created_at="${created_at || ''}">
             <span></span>
-            <a href="#reply">reply</a></div>
+            <a href="#reply">reply</a>
           </div>
-    `;
+        </div>
+      `;
 
       this.messageDiv = this.querySelector('.text');
-
       if (this._originalChildren && this._originalChildren.length > 0) {
-          this._originalChildren.forEach(child => {
-              this.messageDiv.appendChild(child);
-          });
+        this._originalChildren.forEach(child => {
+          this.messageDiv.appendChild(child);
+        });
       }
 
       this.timeDiv = this.querySelector('.time span');
       this.replyDiv = this.querySelector('.time a');
 
-        this.replyDiv.addEventListener('click', (e) => {
-          e.preventDefault();
-          this.dispatchEvent(new ReplyEvent(this.messageDiv));
-        })
+      this.replyDiv.addEventListener('click', (e) => {
+        e.preventDefault();
+        this.dispatchEvent(new ReplyEvent(this.messageDiv));
+      });
     }
 
+    // Sibling logic for user switches and long time gaps
     if ((!this.siblingGenerated || this.siblingGenerated !== this.nextElementSibling) && this.nextElementSibling) {
       this.siblingGenerated = this.nextElementSibling;
       if (this.nextElementSibling?.dataset?.user_uid !== this.dataset.user_uid) {
@@ -102,7 +104,7 @@ class MessageElement extends HTMLElement {
         const siblingTime = new Date(this.nextElementSibling.dataset.created_at);
         const currentTime = new Date(this.dataset.created_at);
 
-        if (currentTime.getTime()  - siblingTime.getTime() > LONG_TIME) {
+        if (currentTime.getTime() - siblingTime.getTime() > LONG_TIME) {
           this.classList.add('long-time');
         } else {
           this.classList.remove('long-time');
@@ -115,7 +117,7 @@ class MessageElement extends HTMLElement {
 
   updateMessage(...messages) {
     if (this._originalChildren) {
-      this.messageDiv.replaceChildren(...messages)
+      this.messageDiv.replaceChildren(...messages);
       this._originalChildren = messages;
     }
   }
@@ -124,38 +126,26 @@ class MessageElement extends HTMLElement {
     this.updateUI();
   }
 
-  disconnectedCallback() {
-  }
-
-  connectedMoveCallback() {
-  }
+  disconnectedCallback() {}
+  connectedMoveCallback() {}
 
   attributeChangedCallback(name, oldValue, newValue) {
-    this.updateUI()
+    this.updateUI();
   }
 }
 
 class MessageList extends HTMLElement {
   constructor() {
     super();
-    app.ws.addEventListener("update_message_text", (data) => {
-      if (this.messageMap.has(data.uid)) {
-        this.upsertMessage(data);
-      }
-    });
-    app.ws.addEventListener("set_typing", (data) => {
-      this.triggerGlow(data.user_uid,data.color);
-    });
-
     this.messageMap = new Map();
     this.visibleSet = new Set();
+
     this._observer = new IntersectionObserver((entries) => {
       entries.forEach((entry) => {
         if (entry.isIntersecting) {
           this.visibleSet.add(entry.target);
-          const messageElement = entry.target;
-          if (messageElement instanceof MessageElement) {
-              messageElement.updateUI();
+          if (entry.target instanceof MessageElement) {
+            entry.target.updateUI();
           }
         } else {
           this.visibleSet.delete(entry.target);
@@ -164,28 +154,42 @@ class MessageList extends HTMLElement {
     }, {
       root: this,
       threshold: 0,
-    })
+    });
 
+    // End-of-messages marker
     this.endOfMessages = document.createElement('div');
     this.endOfMessages.classList.add('message-list-bottom');
     this.prepend(this.endOfMessages);
 
-    for(const c of this.children) {
+    // Observe existing children and index by uid
+    for (const c of this.children) {
       this._observer.observe(c);
       if (c instanceof MessageElement) {
-          this.messageMap.set(c.dataset.uid, c);
+        this.messageMap.set(c.dataset.uid, c);
       }
     }
 
+    // Wire up socket events
+    app.ws.addEventListener("update_message_text", (data) => {
+      if (this.messageMap.has(data.uid)) {
+        this.upsertMessage(data);
+      }
+    });
+    app.ws.addEventListener("set_typing", (data) => {
+      this.triggerGlow(data.user_uid, data.color);
+    });
+
     this.scrollToBottom(true);
   }
 
   connectedCallback() {
     this.addEventListener('click', (e) => {
-      if (e.target.tagName !== 'IMG' || e.target.classList.contains('avatar-img')) return;
+      if (
+        e.target.tagName !== 'IMG' ||
+        e.target.classList.contains('avatar-img')
+      ) return;
 
       const img = e.target;
-
       const overlay = document.createElement('div');
       overlay.style.cssText = 'position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.9);display:flex;justify-content:center;align-items:center;z-index:9999;cursor:pointer;';
 
@@ -206,12 +210,11 @@ class MessageList extends HTMLElement {
 
       overlay.appendChild(fullImg);
       document.body.appendChild(overlay);
+
       overlay.addEventListener('click', () => {
-        if (overlay.parentNode) {
-          overlay.parentNode.removeChild(overlay);
-        }
+        if (overlay.parentNode) overlay.parentNode.removeChild(overlay);
       });
-      // Optional: ESC key closes overlay
+      // ESC to close
       const escListener = (evt) => {
         if (evt.key === 'Escape') {
           if (overlay.parentNode) overlay.parentNode.removeChild(overlay);
@@ -219,8 +222,9 @@ class MessageList extends HTMLElement {
         }
       };
       document.addEventListener('keydown', escListener);
-    })
+    });
   }
+
   isElementVisible(element) {
     if (!element) return false;
     const rect = element.getBoundingClientRect();
@@ -231,10 +235,12 @@ class MessageList extends HTMLElement {
       rect.right <= (window.innerWidth || document.documentElement.clientWidth)
     );
   }
+
   isScrolledToBottom() {
-    return this.visibleSet.has(this.endOfMessages)
+    return this.visibleSet.has(this.endOfMessages);
   }
-  scrollToBottom(force = false, behavior= 'instant') {
+
+  scrollToBottom(force = false, behavior = 'instant') {
     if (force || !this.isScrolledToBottom()) {
       this.endOfMessages.scrollIntoView({ behavior, block: 'end' });
       setTimeout(() => {
@@ -261,30 +267,29 @@ class MessageList extends HTMLElement {
     }
   }
 
-
   updateTimes() {
     this.visibleSet.forEach((messageElement) => {
-        if (messageElement instanceof MessageElement) {
-            messageElement.updateUI();
-        }
-    })
+      if (messageElement instanceof MessageElement) {
+        messageElement.updateUI();
+      }
+    });
   }
 
   upsertMessage(data) {
     let message = this.messageMap.get(data.uid);
     if (message) {
-        message.parentElement?.removeChild(message);
+      message.parentElement?.removeChild(message);
     }
-
-    if (!data.message) return
+    if (!data.message) return;
 
     const wrapper = document.createElement("div");
-
     wrapper.innerHTML = data.html;
 
     if (message) {
+      // If the old element is already custom, only update its message children
       message.updateMessage(...(wrapper.firstElementChild._originalChildren || wrapper.firstElementChild.children));
     } else {
+      // If not, insert the new one and observe
       message = wrapper.firstElementChild;
       this.messageMap.set(data.uid, message);
       this._observer.observe(message);
@@ -298,3 +303,4 @@ class MessageList extends HTMLElement {
 
 customElements.define("chat-message", MessageElement);
 customElements.define("message-list", MessageList);
+
diff --git a/src/snek/webdav.py b/src/snek/webdav.py
index e86ea24..4c31f6f 100644
--- a/src/snek/webdav.py
+++ b/src/snek/webdav.py
@@ -188,6 +188,7 @@ class WebdavApplication(aiohttp.web.Application):
         headers = {
             "DAV": "1, 2",
             "Allow": "OPTIONS, GET, PUT, DELETE, MKCOL, MOVE, COPY, PROPFIND, PROPPATCH, PROPGET, PROPSET, PROPDEL",
+            "MS-Author-Via": "DAV",
         }
         return aiohttp.web.Response(status=200, headers=headers)