fix:安卓端渲染失败

卡片正面内容模板.txt

@@ -1,12 +1,33 @@
 <div class="md-content">
 {{Front}}
 </div>
-<!-- https://github.com/markdown-it/markdown-it -->
+
-<script defer src="https://lf6-cdn-tos.bytecdntp.com/cdn/expire-1-M/markdown-it/12.3.2/markdown-it.min.js"></script>
+
-<!-- 代码高亮库 -->
+<script>
-<script defer src="https://lf26-cdn-tos.bytecdntp.com/cdn/expire-1-M/highlight.js/11.4.0/highlight.min.js"></script>
+  var getResources = [
-<script defer>
+    getScript("_markdown-it.min.js", "https://lf6-cdn-tos.bytecdntp.com/cdn/expire-1-M/markdown-it/12.3.2/markdown-it.min.js"),
-      'use strict'
+    getScript("_highlight.min.js", "https://lf26-cdn-tos.bytecdntp.com/cdn/expire-1-M/highlight.js/11.4.0/highlight.min.js"),
+  ];
+  Promise.all(getResources).then(() => {
+    parseMarkDownFn();
+  })
+
+  function getScript(path, altURL) {
+    return new Promise((resolve, reject) => {
+      let script = document.createElement("script");
+      script.onload = resolve;
+      script.onerror = function () {
+        let script_online = document.createElement("script");
+        script_online.onload = resolve;
+        script_online.onerror = reject;
+        script_online.src = altURL;
+        document.head.appendChild(script_online);
+      }
+      script.src = path;
+      document.head.appendChild(script);
+    })
+  }
+
   // 在anki中通过窗口查看调试信息 没控制台啊
   function consoleLog(str) {
     var div = document.createElement('div')
@@ -33,6 +54,7 @@
     Object.assign(document.createElement('textarea'), { innerHTML }).value
 
   // 解析（入口main方法）
+ // 解析（入口main方法）
  var parseMarkDownFn = () => {
         const md = markdownit({
           html: true, // 若为 false 将导致 anki 自带的公式渲染失效。
@@ -71,5 +93,5 @@
           // 不能从body直接插入元素 anki 不刷新的
         })
       }
-			parseMarkDownFn();
+
 </script>