fix: pass sdkLanguage to service server (#26702)

packages/playwright-core/src/remote/playwrightConnection.ts

@@ -16,6 +16,7 @@
 
 import type { WebSocket } from '../utilsBundle';
 import type { DispatcherScope, Playwright } from '../server';
+import type * as channels from '@protocol/channels';
 import { createPlaywright, DispatcherConnection, RootDispatcher, PlaywrightDispatcher } from '../server';
 import { Browser } from '../server/browser';
 import { serverSideCallMetadata } from '../server/instrumentation';
@@ -94,21 +95,21 @@ export class PlaywrightConnection {
       return;
     }
 
-    this._root = new RootDispatcher(this._dispatcherConnection, async scope => {
+    this._root = new RootDispatcher(this._dispatcherConnection, async (scope, options) => {
       await startProfiling();
       if (clientType === 'reuse-browser')
         return await this._initReuseBrowsersMode(scope);
       if (clientType === 'pre-launched-browser-or-android')
         return this._preLaunched.browser ? await this._initPreLaunchedBrowserMode(scope) : await this._initPreLaunchedAndroidMode(scope);
       if (clientType === 'launch-browser')
-        return await this._initLaunchBrowserMode(scope);
+        return await this._initLaunchBrowserMode(scope, options);
       throw new Error('Unsupported client type: ' + clientType);
     });
   }
 
-  private async _initLaunchBrowserMode(scope: RootDispatcher) {
+  private async _initLaunchBrowserMode(scope: RootDispatcher, options: channels.RootInitializeParams) {
     debugLogger.log('server', `[${this._id}] engaged launch mode for "${this._options.browserName}"`);
-    const playwright = createPlaywright({ sdkLanguage: 'javascript', isServer: true });
+    const playwright = createPlaywright({ sdkLanguage: options.sdkLanguage, isServer: true });
 
     const ownedSocksProxy = await this._createOwnedSocksProxy(playwright);
     const browser = await playwright[this._options.browserName as 'chromium'].launch(serverSideCallMetadata(), this._options.launchOptions);