fix(ssr): correct stacktrace column position for first line

packages/vite/src/module-runner/esmEvaluator.ts

@@ -14,7 +14,8 @@ import type { ModuleEvaluator, ModuleRunnerContext } from './types'
 
 export class ESModulesEvaluator implements ModuleEvaluator {
   public readonly startOffset: number =
-    getAsyncFunctionDeclarationPaddingLineCount()
+    // +1 for the `"use strict";` directive placed on its own line below
+    getAsyncFunctionDeclarationPaddingLineCount() + 1
 
   async runInlinedModule(
     context: ModuleRunnerContext,
@@ -28,8 +29,9 @@ export class ESModulesEvaluator implements ModuleEvaluator {
       ssrDynamicImportKey,
       ssrExportAllKey,
       ssrExportNameKey,
-      // source map should already be inlined by Vite
-      '"use strict";' + code,
+      // source map should already be inlined by Vite.
+      // Place "use strict" on its own line to avoid shifting the column numbers
+      '"use strict";\n' + code,
     )
 
     await initModule(

packages/vite/src/node/ssr/runtime/__tests__/server-source-maps.spec.ts

@@ -76,12 +76,11 @@ describe('module runner initialization', async () => {
   })
 
   it('stacktrace column on first line', async ({ runner, server }) => {
-    // column is off by "use strict"
     const topLevelError = await getError(() =>
       runner.import('/fixtures/has-error-first.js'),
     )
     expect(serializeStack(server, topLevelError)).toBe(
-      '    at <root>/fixtures/has-error-first.js:1:18',
+      '    at <root>/fixtures/has-error-first.js:1:7',
     )
 
     const topLevelErrorTs = await getError(() =>

packages/vite/src/node/ssr/ssrStacktrace.ts

@@ -10,7 +10,9 @@ function calculateOffsetOnce() {
   }
 
   try {
-    new Function('throw new Error(1)')()
+    // `"use strict";` mirrors the directive prepended on its own line by
+    // `ESModulesEvaluator`
+    new Function('"use strict";\nthrow new Error(1)')()
   } catch (e) {
     // in Node 12, stack traces account for the function wrapper.
     // in Node 13 and later, the function wrapper adds two lines,