microsoft · Skn0tt · Dec 22, 2025 · Dec 22, 2025 · Dec 23, 2025 · Dec 23, 2025
diff --git a/packages/html-reporter/src/links.tsx b/packages/html-reporter/src/links.tsx
@@ -181,7 +181,12 @@ function downloadFileNameForAttachment(attachment: TestAttachment): string {
 }
 
 export function generateTraceUrl(traces: TestAttachment[]) {
-  return `trace/index.html?${traces.map((a, i) => `trace=${new URL(a.path!, window.location.href)}`).join('&')}`;
+  const searchParams = new URLSearchParams();
+  for (const trace of traces) {
+    const url = new URL(trace.path!, window.location.href);
+    searchParams.append('trace', formatUrl(url.toString()));
+  }
+  return `trace/index.html?${searchParams}`;
 }
 
 const kMissingContentType = 'x-playwright/missing';

diff --git a/packages/trace-viewer/bundle.ts b/packages/trace-viewer/bundle.ts
@@ -14,7 +14,67 @@
  * limitations under the License.
  */
 
-import type { Plugin } from 'vite';
+import type { IndexHtmlTransformContext, Plugin } from 'vite';
+
+function transformAssetLinks(html: string, ctx: IndexHtmlTransformContext): string {
+  const assets: [tag: string, attrs: Record<string, string | boolean>][] = [];
+  const parseAttrs = (attrString: string) => {
+    const matches = attrString.matchAll(/(\w+)(?:\s*=\s*["']([^"']+)["'])?/g);
+    return Object.fromEntries(Array.from(matches, ([, key, value]) => [key, value !== undefined ? value : true]));
+  };
+
+  html = html.replace(/<script\s+([^>]*?\bsrc\s*=\s*["'][^"']+["'][^>]*)><\/script>/gi, (match, attrs) => {
+    assets.push(['script', parseAttrs(attrs)]);
+    return '';
+  });
+
+  html = html.replace(/<link\s+([^>]*?\bhref\s*=\s*["'][^"']+["'][^>]*)>/gi, (match, attrs) => {
+    assets.push(['link', parseAttrs(attrs)]);
+    return '';
+  });
+
+  const dynamicAssets = [
+    ...ctx.chunk?.dynamicImports ?? [],
+    ...ctx.chunk?.imports ?? [],
+    ...Object.keys(ctx.bundle)
+  ].map(f => `./${f}`);
+
+  function assetScript(assets: [tag: string, attrs: Record<string, string | boolean>][], dynamicAssets: string[]) {
+    const search = new URLSearchParams(window.location.search);
+    search.delete('trace');
+    if (search.size === 0)
+      return;
+
+    const importMap: Record<string, string> = {};
+    for (const asset of dynamicAssets)
+      importMap[asset] = asset + '?' + search.toString();
+
+    for (const [tag, attrs] of assets) {
+      const el = document.createElement(tag);
+      for (const key in attrs) {
+        let value = attrs[key];
+        if ((key === 'src' || key === 'href')) {
+          value += '?' + search.toString();
+          importMap[key] = '' + value;
+        }
+        if (value === true)
+          el.setAttribute(key, '');
+        else
+          el.setAttribute(key, '' + value);
+
+      }
+      document.head.appendChild(el);
+    }
+
+    const script = document.createElement('script');
+    script.type = 'importmap';
+    script.textContent = JSON.stringify({ imports: importMap });
+    document.head.appendChild(script);
+  }
+  html = html.replace('</head>', `<script>(${assetScript})(${JSON.stringify(assets)}, ${JSON.stringify(dynamicAssets)})</script>\n  </head>`);
+
+  return html;
+}
 
 export function bundle(): Plugin {
   return {
@@ -23,6 +83,10 @@
       handler(html, ctx) {
         if (!ctx || !ctx.bundle)
           return html;
+
+        if (ctx.filename.endsWith('index.html') || ctx.filename.endsWith('snapshot.html'))
+          html = transformAssetLinks(html, ctx);
+
         // Workaround vite issue that we cannot exclude some scripts from preprocessing.
         return html.replace(/(?=<!--)([\s\S]*?)-->/, '').replace('<!-- <script src="stall.js"></script> -->', '<script src="stall.js"></script>');
       },

diff --git a/packages/trace-viewer/index.html b/packages/trace-viewer/index.html
@@ -20,6 +20,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <link rel="icon" href="/playwright-logo.svg" type="image/svg+xml">
     <link rel="manifest" href="/manifest.webmanifest">
+    <meta name="referrer" content="no-referrer">
     <title>Playwright Trace Viewer</title>
   </head>
   <body>

diff --git a/packages/trace-viewer/snapshot.html b/packages/trace-viewer/snapshot.html
@@ -15,13 +15,16 @@
 -->
 <!DOCTYPE html>
 <html lang="en">
+  <head>
+    <meta name="referrer" content="no-referrer">
+  </head>
   <body>
     <iframe src="about:blank" style="position:absolute;top:0;left:0;right:0;bottom:0;width:100%;height:100%;border:none;"></iframe>
     <script>
       (async () => {
         if (!navigator.serviceWorker)
           throw new Error(`Service workers are not supported.\nMake sure to serve the Trace Viewer (${window.location}) via HTTPS or localhost.`);
-        navigator.serviceWorker.register('sw.bundle.js');
+        navigator.serviceWorker.register('sw.bundle.js' + location.search);
         if (!navigator.serviceWorker.controller)
           await new Promise(f => navigator.serviceWorker.oncontrollerchange = f);
         const traceUrl = new URL(location.href).searchParams.get('trace');

diff --git a/packages/trace-viewer/src/index.tsx b/packages/trace-viewer/src/index.tsx
@@ -30,7 +30,7 @@ import { LiveWorkbenchLoader } from './ui/liveWorkbenchLoader';
       await new Promise(f => setTimeout(f, 1000));
     if (!navigator.serviceWorker)
       throw new Error(`Service workers are not supported.\nMake sure to serve the Trace Viewer (${window.location}) via HTTPS or localhost.`);
-    navigator.serviceWorker.register('sw.bundle.js');
+    navigator.serviceWorker.register(`sw.bundle.js?${queryParams}`);
     if (!navigator.serviceWorker.controller) {
       await new Promise<void>(f => {
         navigator.serviceWorker.oncontrollerchange = () => f();

diff --git a/packages/trace-viewer/uiMode.html b/packages/trace-viewer/uiMode.html
@@ -19,6 +19,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <link rel="icon" href="/playwright-logo.svg" type="image/svg+xml">
+    <meta name="referrer" content="no-referrer">
     <title>Playwright Test</title>
   </head>
   <body>

diff --git a/tests/playwright-test/reporter-html.spec.ts b/tests/playwright-test/reporter-html.spec.ts
@@ -17,6 +17,8 @@
 import fs from 'fs';
 import path from 'path';
 import url from 'url';
+import http from 'http';
+import type { AddressInfo } from 'net';
 import { test as baseTest, expect as baseExpect, createImage } from './playwright-test-fixtures';
 import type { HttpServer } from '../../packages/playwright-core/lib/server/utils/httpServer';
 import { startHtmlReportServer } from '../../packages/playwright/lib/reporters/html';
@@ -3306,6 +3308,47 @@ for (const useIntermediateMergeReport of [true, false] as const) {
         await expect(page.getByRole('link', { name: 'previous' })).not.toBeVisible();
       });
     });
+
+    test('auth tokens are inherited', async ({ runInlineTest, page, server }) => {
+      const httpServer = http.createServer((req, res) => {
+        const url = new URL(req.url!, `http://${req.headers.host}`);
+        if (url.searchParams.get('token') !== 'foo') {
+          res.writeHead(403);
+          res.end('Forbidden');
+          return;
+        }
+        server.serveFile(req, res, test.info().outputPath('playwright-report', url.pathname));
+      });
+      const port = await new Promise<number>(resolve => {
+        httpServer.listen(0, () => {
+          resolve((httpServer.address() as AddressInfo).port);
+        });
+      });
+      const result = await runInlineTest({
+        'playwright.config.js': `
+          module.exports = { use: { trace: 'on' } };
+        `,
+        'a.test.js': `
+          import { test, expect, request } from '@playwright/test';
+          test('pass', async ({ page }) => {
+            await page.setContent('<div>hello</div>');
+          });
+        `,
+      }, { reporter: 'html,dot' }, { PLAYWRIGHT_HTML_OPEN: 'never' });
+      expect(result.exitCode).toBe(0);
+      expect(result.passed).toBe(1);
+      await page.goto(`http://localhost:${port}/index.html?token=foo`);
+
+      await page.getByRole('link', { name: 'View Trace' }).click();
+      await expect(page.getByTestId('actions-tree')).toContainText('Set content');
+
+      await page.getByText('Source').click();
+      await expect(page.getByText('await page.setContent(\'<div>hello</div>\');')).toBeVisible();
+
+      await page.pause();
+
+      httpServer.close();
+    });
   });
 }