diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 1012cd33..34d2686a 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -8334,6 +8334,7 @@ snapshots:
 
   http-proxy-middleware@2.0.7(@types/express@4.17.21):
     dependencies:
+
       '@types/http-proxy': 1.17.16
       http-proxy: 1.18.1(debug@4.4.0)
       is-glob: 4.0.3
@@ -8654,7 +8655,7 @@ snapshots:
       escape-html: 1.0.3
       fresh: 0.5.2
       http-assert: 1.5.0
-      http-errors: 1.8.1
+      http-errors: 1.6.3
       is-generator-function: 1.1.0
       koa-compose: 4.1.0
       koa-convert: 2.0.0
diff --git a/src/farm/index.ts b/src/farm/index.ts
index f7e7855f..9b887e63 100644
--- a/src/farm/index.ts
+++ b/src/farm/index.ts
@@ -16,7 +16,6 @@ import type {
 } from '../types'
 import type { JsPluginExtended, WatchChangeEvents } from './utils'
 
-import { existsSync } from 'node:fs'
 import path from 'node:path'
 
 import { toArray } from '../utils/general'
@@ -28,8 +27,8 @@ import {
   customParseQueryString,
   decodeStr,
   encodeStr,
+  formatTransformModuleType,
   getContentValue,
-  guessIdLoader,
   isObject,
   isStartsWithSlash,
   isString,
@@ -88,13 +87,11 @@ export function toFarmPlugin(plugin: UnpluginOptions, options?: Record<string, a
       filters = options?.filters ?? []
 
     farmPlugin.resolve = {
-      filters: { sources: ['.*', ...filters], importers: ['.*'] },
+      filters: { sources: filters.length ? filters : ['.*'], importers: ['.*'] },
       async executor(params: PluginResolveHookParam, context: CompilationContext) {
         const resolvedIdPath = path.resolve(
-          process.cwd(),
           params.importer ?? '',
         )
-
         let isEntry = false
         if (isObject(params.kind) && 'entry' in params.kind) {
           const kindWithEntry = params.kind as { entry: string }
@@ -126,23 +123,9 @@ export function toFarmPlugin(plugin: UnpluginOptions, options?: Record<string, a
             meta: {},
           }
         }
+
         if (!isStartsWithSlash(params.source))
           return null
-
-        const rootAbsolutePath = path.resolve(
-          params.source,
-        )
-        if (
-          existsSync(rootAbsolutePath)
-        ) {
-          return {
-            resolvedPath: removeQuery(encodeStr(rootAbsolutePath)),
-            query: customParseQueryString(rootAbsolutePath),
-            sideEffects: false,
-            external: false,
-            meta: {},
-          }
-        }
       },
     } as unknown as JsPlugin['resolve']
   }
@@ -161,7 +144,7 @@ export function toFarmPlugin(plugin: UnpluginOptions, options?: Record<string, a
 
         const id = appendQuery(resolvedPath, params.query)
 
-        const loader = guessIdLoader(resolvedPath)
+        const loader = formatTransformModuleType(id)
 
         const shouldLoadInclude
           = plugin.loadInclude?.(id)
@@ -198,7 +181,7 @@ export function toFarmPlugin(plugin: UnpluginOptions, options?: Record<string, a
 
         const id = appendQuery(resolvedPath, params.query)
 
-        const loader = params.moduleType ?? guessIdLoader(params.resolvedPath)
+        const loader = formatTransformModuleType(id)
 
         const shouldTransformInclude
           = plugin.transformInclude?.(id)
@@ -216,7 +199,9 @@ export function toFarmPlugin(plugin: UnpluginOptions, options?: Record<string, a
           const transformFarmResult: PluginTransformHookResult = {
             content: getContentValue(resource),
             moduleType: loader,
-            sourceMap: JSON.stringify(resource.map),
+            sourceMap: typeof resource.map === 'object' && resource.map !== null
+              ? JSON.stringify(resource.map)
+              : undefined,
           }
 
           return transformFarmResult
diff --git a/src/farm/utils.ts b/src/farm/utils.ts
index 88d869ae..f2537c06 100644
--- a/src/farm/utils.ts
+++ b/src/farm/utils.ts
@@ -22,6 +22,8 @@ const ExtToLoader: Record<string, string> = {
   '.node': 'napi',
 }
 
+export const DEFAULT_PATTERN = '.*'
+
 export function guessIdLoader(id: string): string {
   return ExtToLoader[path.extname(id).toLowerCase()] || 'js'
 }
@@ -38,8 +40,8 @@ export function transformQuery(context: any): void {
 export function convertEnforceToPriority(value: 'pre' | 'post' | undefined): number {
   const defaultPriority = 100
   const enforceToPriority = {
-    pre: 101,
-    post: 99,
+    pre: 102,
+    post: 98,
   }
 
   return enforceToPriority[value!] !== undefined
@@ -213,3 +215,60 @@ export function stringifyQuery(query: [string, string][]): string {
 export interface JsPluginExtended extends JsPlugin {
   [key: string]: any
 }
+
+export const CSS_LANGS_RES: [RegExp, string][] = [
+  [/\.(less)(?:$|\?)/, 'less'],
+  [/\.(scss|sass)(?:$|\?)/, 'sass'],
+  [/\.(styl|stylus)(?:$|\?)/, 'stylus'],
+  [/\.(css)(?:$|\?)/, 'css'],
+]
+
+export const JS_LANGS_RES: [RegExp, string][] = [
+  [/\.(js|mjs|cjs)(?:$|\?)/, 'js'],
+  // jsx
+  [/\.(jsx)(?:$|\?)/, 'jsx'],
+  // ts
+  [/\.(ts|cts|mts)(?:$|\?)/, 'ts'],
+  // tsx
+  [/\.(tsx)(?:$|\?)/, 'tsx'],
+]
+
+export function getCssModuleType(id: string): string | null {
+  for (const [reg, lang] of CSS_LANGS_RES) {
+    if (reg.test(id)) {
+      return lang
+    }
+  }
+
+  return null
+}
+
+export function getJsModuleType(id: string): string | null {
+  for (const [reg, lang] of JS_LANGS_RES) {
+    if (reg.test(id)) {
+      return lang
+    }
+  }
+
+  return null
+}
+
+export function formatLoadModuleType(id: string): string {
+  const cssModuleType = getCssModuleType(id)
+
+  if (cssModuleType) {
+    return cssModuleType
+  }
+
+  const jsModuleType = getJsModuleType(id)
+
+  if (jsModuleType) {
+    return jsModuleType
+  }
+
+  return 'js'
+}
+
+export function formatTransformModuleType(id: string): string {
+  return formatLoadModuleType(id)
+}