diff --git a/index.php b/index.php
index 7f8da1c..6f44439 100644
--- a/index.php
+++ b/index.php
@@ -2204,11 +2204,11 @@ RewriteRule ^.*$ /index.php [END]
 
 		if ($relative_uri == '.webdav/webdav.js') {
 			fseek($fp, 58962, SEEK_SET);
-			echo fread($fp, 33638);
+			echo fread($fp, 33651);
 		}
 		else {
-			fseek($fp, 58962 + 33638, SEEK_SET);
-			echo fread($fp, 16729);
+			fseek($fp, 58962 + 33651, SEEK_SET);
+			echo fread($fp, 16767);
 		}
 
 		fclose($fp);
@@ -2299,7 +2299,7 @@ const WebDAVNavigator = (url, options) => {
 	const microdown=function(){function l(n,e,r){return"<"+n+(r?" "+Object.keys(r).map(function(n){return r[n]?n+'="'+(a(r[n])||"")+'"':""}).join(" "):"")+">"+e+"</"+n+">"}function c(n,e){return e=n.match(/^[+-]/m)?"ul":"ol",n?"<"+e+">"+n.replace(/(?:[+-]|\d+\.) +(.*)\n?(([ \t].*\n?)*)/g,function(n,e,r){return"<li>"+g(e+"\n"+(t=r||"").replace(new RegExp("^"+(t.match(/^\s+/)||"")[0],"gm"),"").replace(o,c))+"</li>";var t})+"</"+e+">":""}function e(r,t,u,c){return function(n,e){return n=n.replace(t,u),l(r,c?c(n):n)}}function t(n,u){return f(n,[/<!--((.|\n)*?)-->/g,"\x3c!--$1--\x3e",/^("""|```)(.*)\n((.*\n)*?)\1/gm,function(n,e,r,t){return'"""'===e?l("div",p(t,u),{class:r}):u&&u.preCode?l("pre",l("code",a(t),{class:r})):l("pre",a(t),{class:r})},/(^>.*\n?)+/gm,e("blockquote",/^> ?(.*)$/gm,"$1",r),/((^|\n)\|.+)+/g,e("table",/^.*(\n\|---.*?)?$/gm,function(n,t){return e("tr",/\|(-?)([^|]*)\1(\|$)?/gm,function(n,e,r){return l(e||t?"th":"td",g(r))})(n.slice(0,n.length-(t||"").length))}),o,c,/#\[([^\]]+?)]/g,'<a name="$1"></a>',/^(#+) +(.*)(?:$)/gm,function(n,e,r){return l("h"+e.length,g(r))},/^(===+|---+)(?=\s*$)/gm,"<hr>"],p,u)}var i=this,a=function(n){return n?n.replace(/"/g,"&quot;").replace(/</g,"&lt;").replace(/>/g,"&gt;"):""},o=/(?:(^|\n)([+-]|\d+\.) +(.*(\n[ \t]+.*)*))+/g,g=function c(n,i){var o=[];return n=(n||"").trim().replace(/`([^`]*)`/g,function(n,e){return"\\"+o.push(l("code",a(e)))}).replace(/[!&]?\[([!&]?\[.*?\)|[^\]]*?)]\((.*?)( .*?)?\)|(\w+:\/\/[$\-.+!*'()/,\w]+)/g,function(n,e,r,t,u){return u?i?n:"\\"+o.push(l("a",u,{href:u})):"&"==n[0]?(e=e.match(/^(.+),(.+),([^ \]]+)( ?.+?)?$/),"\\"+o.push(l("iframe","",{width:e[1],height:e[2],frameborder:e[3],class:e[4],src:r,title:t}))):"\\"+o.push("!"==n[0]?l("img","",{src:r,alt:e,title:t}):l("a",c(e,1),{href:r,title:t}))}),n=function r(n){return n.replace(/\\(\d+)/g,function(n,e){return r(o[Number.parseInt(e)-1])})}(i?n:r(n))},r=function t(n){return f(n,[/([*_]{1,3})((.|\n)+?)\1/g,function(n,e,r){return e=e.length,r=t(r),1<e&&(r=l("strong",r)),e%2&&(r=l("em",r)),r},/(~{1,3})((.|\n)+?)\1/g,function(n,e,r){return l([,"u","s","del"][e.length],t(r))},/  \n|\n  /g,"<br>"],t)},f=function(n,e,r,t){for(var u,c=0;c<e.length;){if(u=e[c++].exec(n))return r(n.slice(0,u.index),t)+("string"==typeof e[c]?e[c].replace(/\$(\d)/g,function(n,e){return u[e]}):e[c].apply(i,u))+r(n.slice(u.index+u[0].length),t);c++}return n},p=function(n,e){n=n.replace(/[\r\v\b\f]/g,"").replace(/\\./g,function(n){return"&#"+n.charCodeAt(1)+";"});var r=t(n,e);return r!==n||r.match(/^[\s\n]*$/i)||(r=g(r).replace(/((.|\n)+?)(\n\n+|$)/g,function(n,e){return l("p",e)})),r.replace(/&#(\d+);/g,function(n,e){return String.fromCharCode(parseInt(e))})};return{parse:p,block:t,inline:r,inlineBlock:g}}();
 
 	const PREVIEW_TYPES = /^image\/(png|webp|svg|jpeg|jpg|gif|png)|^application\/pdf|^text\/|^audio\/|^video\/|application\/x-empty/;
-	const PREVIEW_EXTENSIONS = /\.(?:png|webp|svg|jpeg|jpg|gif|png|pdf|txt|md|mp4|mkv|webm|ogg|flac|mp3|aac|m4a|avi)$/i;
+	const PREVIEW_EXTENSIONS = /\.(?:png|webp|svg|jpeg|jpg|gif|png|pdf|txt|css|js|html?|md|mp4|mkv|webm|ogg|flac|mp3|aac|m4a|avi)$/i;
 
 	const _ = key => typeof lang_strings != 'undefined' && key in lang_strings ? lang_strings[key] : key;
 
@@ -2884,7 +2884,7 @@ const WebDAVNavigator = (url, options) => {
 				}
 			}
 
-			item.icon = ext ?? '';
+			item.icon = ext || '';
 			item.class = item.is_dir ? 'dir' : 'file';
 			item.modified = item.modified !== null ? formatDate(item.modified) : null;
 			item.name = html(item.name);
@@ -3498,6 +3498,10 @@ th .icon b {
 	border: 1px solid #2e3c3a;
 }
 
+th .icon b:empty {
+	display: none;
+}
+
 td.check {
 	width: 1.5em;
 	text-align: center;