fix(browser): support vite config server.headers (#4890)

packages/browser/src/node/index.ts

@@ -28,6 +28,13 @@ export default (project: WorkspaceProject, base = '/'): Plugin[] => {
           sirv(resolve(distRoot, 'client'), {
             single: false,
             dev: true,
+            setHeaders(res, _pathname, _stats) {
+              const headers = server.config.server.headers
+              if (headers) {
+                for (const name in headers)
+                  res.setHeader(name, headers[name]!)
+              }
+            },
           }),
         )
       },

test/browser/specs/runner.test.mjs

@@ -11,8 +11,8 @@ const {
 } = await runVitest()
 
 await test('tests are actually running', async () => {
-  assert.ok(browserResultJson.testResults.length === 10, 'Not all the tests have been run')
-  assert.ok(passedTests.length === 8, 'Some tests failed')
+  assert.ok(browserResultJson.testResults.length === 11, 'Not all the tests have been run')
+  assert.ok(passedTests.length === 9, 'Some tests failed')
   assert.ok(failedTests.length === 2, 'Some tests have passed but should fail')
 
   assert.doesNotMatch(stderr, /Unhandled Error/, 'doesn\'t have any unhandled errors')

test/browser/test/server-headers.test.ts

@@ -0,0 +1,7 @@
+import { expect, it } from 'vitest'
+
+it('server.headers', async () => {
+  const res = await fetch('/')
+  expect(res.ok)
+  expect(res.headers.get('x-custom')).toBe('hello')
+})

test/browser/vitest.config.mts

@@ -7,6 +7,11 @@ const dir = dirname(fileURLToPath(import.meta.url))
 function noop() {}
 
 export default defineConfig({
+  server: {
+    headers: {
+      'x-custom': 'hello',
+    },
+  },
   optimizeDeps: {
     include: ['@vitest/cjs-lib'],
   },