diff --git a/package.json b/package.json
index 6fc1cf8..c189b29 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "deploy": "gh-pages -d build -m $(TZ=Asia/Shanghai date +\"%y%m%d%H%M%S\")",
     "eject": "react-scripts eject"
   },
-  "homepage": "https://://cdn.jsdelivr.net/gh/thuhole/webhole@gh-pages",
+  "homepage": "https://cdn.jsdelivr.net/gh/thuhole/webhole@gh-pages",
   "browserslist": {
     "production": [
       ">0.2%",
diff --git a/src/Common.js b/src/Common.js
index f00b742..bf1e3ee 100644
--- a/src/Common.js
+++ b/src/Common.js
@@ -64,6 +64,12 @@ export class HighlightedMarkdown extends Component {
         const props = this.props
         const processDefs = new HtmlToReact.ProcessNodeDefinitions(React)
         const processInstructions = [
+            {
+                shouldProcessNode: (node) => node.name === 'img',
+                processNode (node) {
+                    return (<div>[图片]</div>)
+                }
+            },
             {
                 shouldProcessNode (node) {
                     return node.type === 'text' // pid, nickname, search
diff --git a/src/Markdown.js b/src/Markdown.js
index d803c66..1fc6c87 100644
--- a/src/Markdown.js
+++ b/src/Markdown.js
@@ -1,8 +1,14 @@
 import MarkdownIt from 'markdown-it'
+import MarkdownItKaTeX from 'markdown-it-katex'
+
+import 'katex/dist/katex.min.css'
 
 let md = new MarkdownIt({
   html: false,
   linkify: false
+}).use(MarkdownItKaTeX, {
+  "throwOnError" : false,
+  "errorColor" : "#aa0000"
 })
 
 export default (text) => md.render(text)
\ No newline at end of file