fix: make error message matching more generic (#1988)

* fix: make error message matching more generic

* fix: remove comment

Author: sarahetter

packages/runtime/src/templates/edge/next-dev.js

@@ -38,8 +38,7 @@ const handler = async (req, context) => {
     const nextMiddleware = await import(`../../middleware.js#${++idx}`)
     middleware = nextMiddleware.middleware
   } catch (importError) {
-    // Error message is `Module not found "file://<path>/middleware.js#123456".` in Deno
-    if (importError.code === 'ERR_MODULE_NOT_FOUND' && importError.message.includes(`middleware.js#${idx}`)) {
+    if (importError.code === 'ERR_MODULE_NOT_FOUND' && importError.message.includes(`middleware.js`)) {
       //  No middleware, so we silently return
       return
     }