chore(extension): do not complain about old extension version (#937)

extension/src/ui/connect.tsx

@@ -22,8 +22,7 @@ import type { TabInfo } from './tabItem.js';
 type Status =
   | { type: 'connecting'; message: string }
   | { type: 'connected'; message: string }
-  | { type: 'error'; message: string }
-  | { type: 'error'; versionMismatch: { pwMcpVersion: string; extensionVersion: string; downloadUrl: string } };
+  | { type: 'error'; message: string };
 
 const ConnectApp: React.FC = () => {
   const [tabs, setTabs] = useState<TabInfo[]>([]);
@@ -59,23 +58,6 @@ const ConnectApp: React.FC = () => {
       return;
     }
 
-    const pwMcpVersion = params.get('pwMcpVersion');
-    const extensionVersion = chrome.runtime.getManifest().version;
-    if (pwMcpVersion !== extensionVersion) {
-      const downloadUrl = params.get('downloadUrl') || `https://github.com/microsoft/playwright-mcp/releases/download/v${extensionVersion}/playwright-mcp-extension-v${extensionVersion}.zip`;
-      setShowButtons(false);
-      setShowTabList(false);
-      setStatus({
-        type: 'error',
-        versionMismatch: {
-          pwMcpVersion: pwMcpVersion || 'unknown',
-          extensionVersion,
-          downloadUrl
-        }
-      });
-      return;
-    }
-
     void connectToMCPRelay(relayUrl);
 
     // If this is a browser_navigate command, hide the tab list and show simple allow/reject
@@ -199,50 +181,11 @@ const ConnectApp: React.FC = () => {
   );
 };
 
-const VersionMismatchError: React.FC<{ pwMcpVersion: string; extensionVersion: string; downloadUrl: string }> = ({ pwMcpVersion, extensionVersion, downloadUrl }) => {
-  const readmeUrl = 'https://github.com/microsoft/playwright-mcp/blob/main/extension/README.md';
-
-  const handleDownloadAndOpenExtensions = () => {
-    // Start download
-    const link = document.createElement('a');
-    link.href = downloadUrl;
-    link.download = `playwright-mcp-extension-v${extensionVersion}.zip`;
-    document.body.appendChild(link);
-    link.click();
-    document.body.removeChild(link);
-
-    setTimeout(() => {
-      chrome.tabs.query({ active: true, currentWindow: true }, tabs => {
-        if (tabs[0]?.id)
-          chrome.tabs.update(tabs[0].id, { url: 'chrome://extensions/' });
-      });
-    }, 1000); // Wait 1 second for download to initiate
-  };
-
-  return (
-    <div>
-      Incompatible Playwright MCP version: {pwMcpVersion} (extension version: {extensionVersion}).{' '}
-      <button
-        onClick={handleDownloadAndOpenExtensions}
-        className='link-button'
-      >Click here</button> to download the matching extension, then drag and drop it into the Chrome Extensions page.{' '}
-      See <a href={readmeUrl} target='_blank' rel='noopener noreferrer'>installation instructions</a> for more details.
-    </div>
-  );
-};
 
 const StatusBanner: React.FC<{ status: Status }> = ({ status }) => {
   return (
     <div className={`status-banner ${status.type}`}>
-      {'versionMismatch' in status ? (
-        <VersionMismatchError
-          pwMcpVersion={status.versionMismatch.pwMcpVersion}
-          extensionVersion={status.versionMismatch.extensionVersion}
-          downloadUrl={status.versionMismatch.downloadUrl}
-        />
-      ) : (
-        status.message
-      )}
+      {status.message}
     </div>
   );
 };

extension/tests/extension.spec.ts

@@ -18,7 +18,6 @@ import fs from 'fs';
 import path from 'path';
 import { fileURLToPath } from 'url';
 import { chromium } from 'playwright';
-import packageJSON from '../../package.json' assert { type: 'json' };
 import { test as base, expect } from '../../tests/fixtures.js';
 
 import type { Client } from '@modelcontextprotocol/sdk/client/index.js';
@@ -117,7 +116,7 @@ async function startWithExtensionFlag(browserWithExtension: BrowserWithExtension
   return client;
 }
 
-const testWithOldVersion = test.extend({
+const testWithOldExtensionVersion = test.extend({
   pathToExtension: async ({}, use, testInfo) => {
     const extensionDir = testInfo.outputPath('extension');
     const oldPath = fileURLToPath(new URL('../dist', import.meta.url));
@@ -216,7 +215,7 @@ for (const [mode, startClientMethod] of [
     await confirmationPagePromise;
   });
 
-  testWithOldVersion(`extension version mismatch (${mode})`, async ({ browserWithExtension, startClient, server, useShortConnectionTimeout }) => {
+  testWithOldExtensionVersion(`works with old extension version (${mode})`, async ({ browserWithExtension, startClient, server, useShortConnectionTimeout }) => {
     useShortConnectionTimeout(500);
 
     // Prelaunch the browser, so that it is properly closed after the test.
@@ -233,19 +232,13 @@ for (const [mode, startClientMethod] of [
       arguments: { url: server.HELLO_WORLD },
     });
 
-    const confirmationPage = await confirmationPagePromise;
-    await expect(confirmationPage.locator('.status-banner')).toHaveText(`Incompatible Playwright MCP version: ${packageJSON.version} (extension version: 0.0.1). Click here to download the matching extension, then drag and drop it into the Chrome Extensions page. See installation instructions for more details.`);
+    const selectorPage = await confirmationPagePromise;
+    // For browser_navigate command, the UI shows Allow/Reject buttons instead of tab selector
+    await selectorPage.getByRole('button', { name: 'Allow' }).click();
 
     expect(await navigateResponse).toHaveResponse({
-      result: expect.stringContaining('Extension connection timeout.'),
-      isError: true,
+      pageState: expect.stringContaining(`- generic [active] [ref=e1]: Hello, world!`),
     });
-
-    const downloadPromise = confirmationPage.waitForEvent('download');
-    await confirmationPage.locator('.status-banner').getByRole('button', { name: 'Click here' }).click();
-    const download = await downloadPromise;
-    expect(download.url()).toBe(`https://github.com/microsoft/playwright-mcp/releases/download/v0.0.1/playwright-mcp-extension-v0.0.1.zip`);
-    await download.cancel();
   });
 
 }

src/extension/cdpRelay.ts

@@ -29,7 +29,6 @@ import { WebSocket, WebSocketServer } from 'ws';
 import { httpAddressToString } from '../mcp/http.js';
 import { logUnhandledError } from '../utils/log.js';
 import { ManualPromise } from '../mcp/manualPromise.js';
-import { packageJSON } from '../utils/package.js';
 
 import type websocket from 'ws';
 import type { ClientInfo } from '../browserContextFactory.js';
@@ -120,7 +119,6 @@ export class CDPRelayServer {
       version: clientInfo.version,
     };
     url.searchParams.set('client', JSON.stringify(client));
-    url.searchParams.set('pwMcpVersion', packageJSON.version);
     if (toolName)
       url.searchParams.set('newTab', String(toolName === 'browser_navigate'));
     const href = url.toString();