Change the code to the previous one

 #28 [U] The loading part of the markdown.bundle.js in the markdown.htm has been changed to module as before.

deno.jsonc

@@ -1,7 +1,6 @@
 {
   "tasks": {
     "prepare": "deno task cache && deno task bundle",
-    // "cwd": "cd denops/bufpreview/lib/filetype/markdown/client/",
     "cache": "deno cache --import-map=denops/bufpreview/lib/filetype/markdown/client/import_map.json --node-modules-dir denops/bufpreview/lib/filetype/markdown/client/markdown.js",
     "bundle": "deno run --allow-run --allow-read --allow-env --node-modules-dir denops/bufpreview/lib/filetype/markdown/client/esbuild.js"
   }

denops/bufpreview/lib/filetype/markdown/client/markdown.html

@@ -14,7 +14,7 @@
 
   <title>Loading...</title>
 
-  <script src='markdown.bundle.js'></script>
+  <script type="module" src="markdown.bundle.js"></script>
   <style>
     html {
       scroll-behavior: smooth;

denops/bufpreview/lib/filetype/markdown/client/markdown.js

@@ -1,15 +1,3 @@
-// import MarkdownIt from "npm:markdown-it";
-// import HighlightJs from "npm:highlight.js";
-// import KaTeX from "npm:katex";
-// import TexMath from "npm:markdown-it-texmath";
-// import TaskList from "npm:markdown-it-task-lists";
-// import * as IncrementalDOM from "npm:incremental-dom";
-// import MarkdownItIncrementalDOM from "npm:markdown-it-incremental-dom";
-// import MarkdownItMeta from "npm:markdown-it-meta";
-// import MarkdownItPlantuml from "npm:markdown-it-plantuml";
-// import MarkdownItPlantuml from "npm:punycode";
-// import MarkdownItPlantuml from "npm:events";
-
 import PunyCode from "punycode";
 import Events from "events";
 

denops/bufpreview/lib/server.ts

@@ -95,7 +95,7 @@ export default class Server {
             new Response(this._bundled_markdown_js, {
               status: 200,
               headers: new Headers({
-                "content-type": "text/html",
+                "content-type": "application/javascript",
               }),
             }),
           );