diff --git a/web/.env.example b/web/.env.example
index 79d45bd0f9..2103f00f45 100644
--- a/web/.env.example
+++ b/web/.env.example
@@ -25,6 +25,11 @@ NEXT_PUBLIC_MARKETPLACE_URL_PREFIX=https://marketplace.dify.ai
 # SENTRY
 NEXT_PUBLIC_SENTRY_DSN=
 
+# Build-time source map switch for production build
+# Priority: ENABLE_SOURCE_MAP > ENABLE_PROD_SOURCEMAP
+ENABLE_SOURCE_MAP=
+ENABLE_PROD_SOURCEMAP=false
+
 # Disable Next.js Telemetry (https://nextjs.org/telemetry)
 NEXT_TELEMETRY_DISABLED=1
 
diff --git a/web/Dockerfile b/web/Dockerfile
index 38c2dc5aac..a27e5e91a8 100644
--- a/web/Dockerfile
+++ b/web/Dockerfile
@@ -14,6 +14,8 @@ ENV PNPM_HOME="/pnpm"
 ENV PATH="$PNPM_HOME:$PATH"
 ARG NEXT_PUBLIC_BASE_PATH=""
 ENV NEXT_PUBLIC_BASE_PATH="$NEXT_PUBLIC_BASE_PATH"
+ARG ENABLE_SOURCE_MAP=""
+ENV ENABLE_SOURCE_MAP="$ENABLE_SOURCE_MAP"
 ARG ENABLE_PROD_SOURCEMAP="false"
 ENV ENABLE_PROD_SOURCEMAP="$ENABLE_PROD_SOURCEMAP"
 
diff --git a/web/next.config.ts b/web/next.config.ts
index a7debda835..58505528c4 100644
--- a/web/next.config.ts
+++ b/web/next.config.ts
@@ -5,7 +5,18 @@ import createMDX from '@next/mdx'
 import { codeInspectorPlugin } from 'code-inspector-plugin'
 
 const isDev = process.env.NODE_ENV === 'development'
-const enableProdSourceMaps = process.env.ENABLE_PROD_SOURCEMAP === 'true'
+const parseBooleanEnv = (value: string | undefined): boolean | undefined => {
+  if (value === 'true')
+    return true
+  if (value === 'false')
+    return false
+
+  return undefined
+}
+
+const enableSourceMap = parseBooleanEnv(process.env.ENABLE_SOURCE_MAP)
+const enableProdSourceMapsFallback = parseBooleanEnv(process.env.ENABLE_PROD_SOURCEMAP) ?? false
+const enableProdSourceMaps = enableSourceMap ?? enableProdSourceMapsFallback
 const withMDX = createMDX({
   extension: /\.mdx?$/,
   options: {