From b24d47a5bab46a1b8096187ad43a4c42349919c2 Mon Sep 17 00:00:00 2001
From: "sentry-junior[bot]"
 <264270552+sentry-junior[bot]@users.noreply.github.com>
Date: Mon, 19 Oct 2026 07:39:56 +0000
Subject: [PATCH] fix(v10/nuxt): Keep sourcesContent in Nuxt 5 server source
 maps

Backport of: #25325
---
 packages/nuxt/src/vite/sourceMaps.ts       | 7 +++++--
 packages/nuxt/test/vite/sourceMaps.test.ts | 9 +++++++++
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/packages/nuxt/src/vite/sourceMaps.ts b/packages/nuxt/src/vite/sourceMaps.ts
index 5a6000e51b2b..21132dfc33f6 100644
--- a/packages/nuxt/src/vite/sourceMaps.ts
+++ b/packages/nuxt/src/vite/sourceMaps.ts
@@ -332,7 +332,7 @@ export function changeNuxtSourceMapSettings(
 }
 
 /** Logs warnings about potentially conflicting source map settings.
- *  Configures `sourcemapExcludeSources` in Nitro to make source maps usable in Sentry.
+ *  Configures `sourcemapExcludeSources` and `sourcemapMinify` in Nitro to make source maps usable in Sentry.
  *
  * only exported for testing
  */
@@ -372,10 +372,13 @@ export function validateNitroSourceMapSettings(
   }
 
   nitroConfig.rollupConfig.output.sourcemapExcludeSources = false;
+  // Nitro's source map minification runs after the bundler wrote the maps: it clears `mappings` of maps with
+  // `node_modules` sources, and Nitro 3 also deletes `sourcesContent`, which overrides `sourcemapExcludeSources`.
+  nitroConfig.experimental = { ...nitroConfig.experimental, sourcemapMinify: false };
   if (isDebug) {
     // eslint-disable-next-line no-console
     console.log(
-      '[Sentry] Set `sourcemapExcludeSources: false` in the Nuxt config (`nitro.rollupConfig.output`). Source maps will now include the actual code to be able to un-minify code snippets in Sentry.',
+      '[Sentry] Set `sourcemapExcludeSources: false` (`nitro.rollupConfig.output`) and `sourcemapMinify: false` (`nitro.experimental`) in the Nuxt config. Source maps will now include the actual code to be able to un-minify code snippets in Sentry.',
     );
   }
 }
diff --git a/packages/nuxt/test/vite/sourceMaps.test.ts b/packages/nuxt/test/vite/sourceMaps.test.ts
index aa7056e775f1..45997b8298cd 100644
--- a/packages/nuxt/test/vite/sourceMaps.test.ts
+++ b/packages/nuxt/test/vite/sourceMaps.test.ts
@@ -427,6 +427,7 @@ describe('validate sourcemap settings', () => {
       rollupConfig?: {
         output?: { sourcemap?: SourceMapSetting; sourcemapExcludeSources?: boolean };
       };
+      experimental?: { asyncContext?: boolean; sourcemapMinify?: false };
     };
     type MinimalNuxtConfig = {
       options: { sourcemap?: SourceMapSetting | { server?: SourceMapSetting; client?: SourceMapSetting } };
@@ -462,6 +463,14 @@ describe('validate sourcemap settings', () => {
       expect(nitroConfig?.rollupConfig?.output?.sourcemapExcludeSources).toBe(false);
     });
 
+    it("should disable Nitro's source map minification and keep other experimental options", () => {
+      const nitroConfig = { ...getNitroConfig(true), experimental: { asyncContext: true } };
+
+      validateNitroSourceMapSettings(getNuxtConfig(true), nitroConfig, { debug: true });
+
+      expect(nitroConfig.experimental).toEqual({ asyncContext: true, sourcemapMinify: false });
+    });
+
     it('should not show console.warn when rollup sourcemap is undefined', () => {
       const nitroConfig = getNitroConfig(true);