diff --git a/node/npm_dependencies.ts b/node/npm_dependencies.ts
index c2ddb73d..de963337 100644
--- a/node/npm_dependencies.ts
+++ b/node/npm_dependencies.ts
@@ -69,7 +69,7 @@ export const getDependencyTrackerPlugin = (
         return { external: true }
       }
 
-      const isLocalImport = specifier.startsWith(path.sep) || specifier.startsWith('.')
+      const isLocalImport = specifier.startsWith(path.sep) || specifier.startsWith('.') || path.isAbsolute(specifier)
 
       // If this is a local import, return so that esbuild visits that path.
       if (isLocalImport) {
@@ -161,10 +161,6 @@ export const vendorNPMSpecifiers = async ({
     return
   }
 
-  logger.user(
-    'You are using npm modules in Edge Functions, which is an experimental feature. Learn more at https://ntl.fyi/edge-functions-npm.',
-  )
-
   // To bundle an entire module and all its dependencies, create a barrel file
   // where we re-export everything from that specifier. We do this for every
   // specifier, and each of these files will become entry points to esbuild.
diff --git a/node/server/server.test.ts b/node/server/server.test.ts
index d7dbe74f..ee92c6b7 100644
--- a/node/server/server.test.ts
+++ b/node/server/server.test.ts
@@ -44,13 +44,14 @@ test('Starts a server and serves requests for edge functions', async () => {
     getFunctionsConfig: true,
   }
 
-  const { functionsConfig, graph, success } = await server(
+  const { features, functionsConfig, graph, success } = await server(
     functions,
     {
       very_secret_secret: 'i love netlify',
     },
     options,
   )
+  expect(features).toEqual({})
   expect(success).toBe(true)
   expect(functionsConfig).toEqual([{ path: '/my-function' }, {}, { path: '/global-netlify' }])
 
diff --git a/node/server/server.ts b/node/server/server.ts
index b69bb8f2..953b0585 100644
--- a/node/server/server.ts
+++ b/node/server/server.ts
@@ -1,6 +1,7 @@
 import { DenoBridge, OnAfterDownloadHook, OnBeforeDownloadHook, ProcessRef } from '../bridge.js'
 import { getFunctionConfig, FunctionConfig } from '../config.js'
 import type { EdgeFunction } from '../edge_function.js'
+import type { FeatureFlags } from '../feature_flags.js'
 import { generateStage2 } from '../formats/javascript.js'
 import { ImportMap } from '../import_map.js'
 import { getLogger, LogFunction, Logger } from '../logger.js'
@@ -18,6 +19,7 @@ interface PrepareServerOptions {
   distDirectory: string
   distImportMapPath?: string
   entryPoint?: string
+  featureFlags?: FeatureFlags
   flags: string[]
   formatExportTypeError?: FormatFunction
   formatImportError?: FormatFunction
@@ -36,6 +38,7 @@ const prepareServer = ({
   deno,
   distDirectory,
   distImportMapPath,
+  featureFlags,
   flags: denoFlags,
   formatExportTypeError,
   formatImportError,
@@ -64,17 +67,22 @@ const prepareServer = ({
       formatImportError,
     })
 
+    const features: Record<string, boolean> = {}
     const importMap = baseImportMap.clone()
-    const vendor = await vendorNPMSpecifiers({
-      basePath,
-      directory: distDirectory,
-      functions: functions.map(({ path }) => path),
-      importMap,
-      logger,
-    })
 
-    if (vendor) {
-      importMap.add(vendor.importMap)
+    if (featureFlags?.edge_functions_npm_modules) {
+      const vendor = await vendorNPMSpecifiers({
+        basePath,
+        directory: distDirectory,
+        functions: functions.map(({ path }) => path),
+        importMap,
+        logger,
+      })
+
+      if (vendor) {
+        features.npmModules = true
+        importMap.add(vendor.importMap)
+      }
     }
 
     try {
@@ -116,6 +124,7 @@ const prepareServer = ({
     const success = await waitForServer(port, processRef.ps)
 
     return {
+      features,
       functionsConfig,
       graph,
       success,
@@ -141,6 +150,7 @@ interface ServeOptions {
   certificatePath?: string
   debug?: boolean
   distImportMapPath?: string
+  featureFlags?: FeatureFlags
   inspectSettings?: InspectSettings
   importMapPaths?: string[]
   onAfterDownload?: OnAfterDownloadHook
@@ -159,6 +169,7 @@ export const serve = async ({
   debug,
   distImportMapPath,
   inspectSettings,
+  featureFlags,
   formatExportTypeError,
   formatImportError,
   importMapPaths = [],
@@ -212,6 +223,7 @@ export const serve = async ({
     deno,
     distDirectory: servePath,
     distImportMapPath,
+    featureFlags,
     flags,
     formatExportTypeError,
     formatImportError,