diff --git a/lib/compile-vue.js b/lib/compile-vue.js
index 0247722..6e35595 100644
--- a/lib/compile-vue.js
+++ b/lib/compile-vue.js
@@ -159,7 +159,6 @@ export function parseJs(
         if (name.startsWith('@/')) {
           name = name.replace('@/', urlJoin(DEPLOY_PATH, ASSETS_DIR))
         }
-        let isJson = name.endsWith('.json')
 
         if (!imports[name]) {
           if (name.startsWith('./') || name.startsWith('../')) {
@@ -179,7 +178,6 @@ export function parseJs(
 
           if (
             !name.endsWith('.js') &&
-            !isJson &&
             !name.endsWith('.mjs') &&
             !name.endsWith('.vue')
           ) {
@@ -202,14 +200,9 @@ export function parseJs(
           _alias = ' default ' + alias.replace('* as', '').trim()
         }
 
-        if (LEGACY_MODE && isJson) {
-          _import = `const ${alias} = await __fite_import('${name}', import.meta.url)`
-        } else {
-          _import = `import ${alias} from '${name}'${
-            isJson ? ' assert { type: "json" }' : ''
-          }`
-        }
+        _import = `import ${alias} from '${name}'`
         _import += t === 'export' ? `\nexport ${_alias}` : ''
+
         return _import
       }
     )
@@ -220,6 +213,9 @@ export function parseJs(
       if (name.startsWith('@/')) {
         name = name.replace('@/', urlJoin(DEPLOY_PATH, ASSETS_DIR))
       }
+      if (name.endsWith('.json')) {
+        name += '.js'
+      }
       return `import('${name}')`
     })
     .replace(/import (["'])(.*?)\1/g, function (m, q, name) {
@@ -235,20 +231,28 @@ export function parseJs(
         let _name = name.replace(/\\/g, '/').replace('@/', '')
         let tmp = `style_${uuid()}`
 
+        // 因为esm语法的变更, 原先的 import xx from xx assets {type: css} 变为了 with
+        // 而这个语法的变化, 构建工具无法做版本判断, 故, 统一降级到fetch()加载
         if (LEGACY_MODE) {
-          fixedStyle += `${tmp}.then(r => {
-  let stylesheet = document.createElement('style')
-  stylesheet.setAttribute('name', '${_name}')
-  stylesheet.textContent = r
-  document.head.appendChild(stylesheet)
-})
-`
-          return `const ${tmp} = __fite_import('${name}', import.meta.url)`
+          fixedStyle +=
+            `{\n` +
+            `  let stylesheet = document.createElement('style');\n` +
+            `  stylesheet.setAttribute('name', '${_name}');\n` +
+            `  stylesheet.textContent = ${tmp};\n` +
+            `  document.head.appendChild(stylesheet);\n` +
+            `}\n`
         } else {
-          fixedStyle += `${tmp}.path = '${_name}'\n__sheets__.push(${tmp})\n`
-
-          return `import ${tmp} from '${name}' assert { type: 'css' }`
+          // CSSStyleSheet.replaceSync 需要FF v101, Safari 16.4才支持
+          fixedStyle +=
+            `{\n` +
+            `  let stylesheet = new CSSStyleSheet();\n` +
+            `  stylesheet.path = '${_name}';\n` +
+            `  stylesheet.replaceSync(${tmp} );\n` +
+            `  __sheets__.push(stylesheet);\n` +
+            `  document.adoptedStyleSheets = __sheets__;\n` +
+            `}\n`
         }
+        return `const ${tmp} = await __fite_import('${name}', import.meta.url)`
       } else {
         if (name.startsWith('@/')) {
           name = name.replace('@/', urlJoin(DEPLOY_PATH, ASSETS_DIR))
@@ -272,7 +276,6 @@ export function parseJs(
 
           if (
             !name.endsWith('.js') &&
-            !name.endsWith('.json') &&
             !name.endsWith('.mjs') &&
             !name.endsWith('.vue')
           ) {
@@ -410,13 +413,13 @@ function render(_ctx, _cache) {
 `
     } else {
       output += `
-  {
-    let stylesheet = new CSSStyleSheet()
-    stylesheet.path = '${filename}'
-    stylesheet.replaceSync(\`${scss}\`)
-    __sheets__.push(stylesheet)
-  }
-  document.adoptedStyleSheets = __sheets__
+{
+  let stylesheet = new CSSStyleSheet()
+  stylesheet.path = '${filename}'
+  stylesheet.replaceSync(\`${scss}\`)
+  __sheets__.push(stylesheet)
+}
+document.adoptedStyleSheets = __sheets__
 `
     }
   }
@@ -439,9 +442,7 @@ export function parseHtml(html, { page, imports, entry, LEGACY_MODE }) {
       `${
         process.env.NODE_ENV === 'development'
           ? `  <script>${minify(createHmrScript(LEGACY_MODE))}</script>\n`
-          : LEGACY_MODE
-          ? `  <script>${minify(LEGACY_POLYFILL)}</script>\n`
-          : ''
+          : `  <script>${minify(LEGACY_POLYFILL)}</script>\n`
       }</head>`
     )
     .replace('{{title}}', page.title || '')
diff --git a/lib/compile.js b/lib/compile.js
index a0f0dd0..85a041f 100644
--- a/lib/compile.js
+++ b/lib/compile.js
@@ -66,14 +66,15 @@ export async function compileFiles(
           })
         }
         break
-
+      // es2024之后esm的语法的assets 变成了with, 对构建工具来说无法适配到具体的浏览器
+      // 故把json文件改成js文件
       case '.json':
         {
           let code = fs.cat(path)
 
-          code = JSON.stringify(JSON.parse(code + ''))
+          code = 'export default ' + JSON.stringify(JSON.parse(code + ''))
 
-          fs.echo(code, join(dist, 'assets/', pageDir, it.name))
+          fs.echo(code, join(dist, 'assets/', pageDir, it.name + '.js'))
         }
         break
 
diff --git a/lib/constants.js b/lib/constants.js
index 95ad83b..9652e52 100644
--- a/lib/constants.js
+++ b/lib/constants.js
@@ -40,12 +40,11 @@ export const LEGACY_POLYFILL = `!(function(){
   }
   
   window.__fite_import = function(url,relPath){
-    let isJson = url.endsWith('.json')
     let absPath = relPath.split('/').slice(0, -1).join('/')
     let req
     if(url.startsWith('./') || url.startsWith('../')) {
       url = join(absPath, url)
     }
-    return window.fetch(url).then(r => isJson ? r.json() : r.text())
+    return window.fetch(url).then(r =>  r.text())
   }
 })()`
diff --git a/lib/dev.js b/lib/dev.js
index 0af595d..59696c7 100644
--- a/lib/dev.js
+++ b/lib/dev.js
@@ -255,11 +255,16 @@ export default async function createServer(root = '', conf = {}) {
             }
             break
 
-          case 'json':
           case 'js':
             {
               let rpath = pathname.replace('@/', '')
               let file
+              let isJson = false
+
+              if (rpath.endsWith('json.js')) {
+                isJson = true
+                rpath = rpath.slice(0, -3)
+              }
 
               if (IS_MPA) {
                 // 判断前后2个值相等, 避免出现目录名和页面名字相同时走错逻辑
@@ -283,7 +288,14 @@ export default async function createServer(root = '', conf = {}) {
                 res.end('')
                 return
               }
-              if (ext === 'js') {
+              if (isJson) {
+                try {
+                  code =
+                    'export default ' + JSON.stringify(JSON.parse(code + ''))
+                } catch (err) {
+                  console.log('%s 语法错误: %s', rpath, red(err.message))
+                }
+              } else {
                 code = parseJs(
                   code + '',
                   conf.imports,