fix: do not open browser when open parameter is set to false

packages/core/src/server/open.ts

@@ -107,11 +107,15 @@ export function resolveUrl(str: string, base: string): string {
 
 const normalizeOpenConfig = (
   config: NormalizedConfig,
-): { targets: string[]; before?: () => Promise<void> | void } => {
+): {
+  targets: string[];
+  before?: () => Promise<void> | void;
+  skip?: boolean;
+} => {
   const { open } = config.server;
 
   if (typeof open === 'boolean') {
-    return { targets: [] };
+    return { targets: [], skip: !open };
   }
   if (typeof open === 'string') {
     return { targets: [open] };
@@ -139,7 +143,10 @@ export async function open({
   config: NormalizedConfig;
   clearCache?: boolean;
 }): Promise<void> {
-  const { targets, before } = normalizeOpenConfig(config);
+  const { targets, before, skip } = normalizeOpenConfig(config);
+  if (skip) {
+    return;
+  }
 
   // Skip open in codesandbox. After being bundled, the `open` package will
   // try to call system xdg-open, which will cause an error on codesandbox.

packages/core/tests/open.test.ts

@@ -1,4 +1,5 @@
-import { replacePortPlaceholder, resolveUrl } from '../src/server/open';
+import type { NormalizedConfig, NormalizedServerConfig } from '../dist-types';
+import { open, replacePortPlaceholder, resolveUrl } from '../src/server/open';
 
 describe('plugin-open', () => {
   it('#replacePortPlaceholder - should replace port number correctly', () => {

website/docs/en/config/server/open.mdx

@@ -73,6 +73,16 @@ export default {
 };
 ```
 
+- Do not open any browser at all:
+
+```js
+export default {
+  server: {
+    open: false,
+  },
+};
+```
+
 ## Port placeholder
 
 The port number that Rsbuild server listens on may change. For example, if the port is in use, Rsbuild will automatically increment the port number until it finds an available port.