Allure awesome report with singleFile option is displaying empty page with 'Data "widgets/default/tree.json" not found!'

[Valiantsin2021]

Describe the bug

I am using allure 3 v3.0.0-beta.22 with playwright/js v1.56.1, Node v24.10.0 on Windows 11.

Config file:

import { defineConfig } from 'allure'

export default defineConfig({
  name: 'Allure Prestashop E2E Report',
  output: './report/allure-report',
  plugins: {
    awesome: {
      options: {
        singleFile: true,
        reportLanguage: 'en'
      }
    }
  }
})

To Reproduce
Steps to reproduce the behavior:

1. Set the singleFile option to true in the allurerc.js
2. Run tests with command - npx allure run -- npx playwright test .spec.js
3. When test finishes the allure-report folder is generated containing index.html and summary.json files
4. Opening the standalone index.html file in any browser results in empty report page with error message displayed - Data "widgets/default/tree.json" not found! (see attached screenshot)

Expected behavior
Report is opened and displaying the test results

Screenshots

Desktop (please complete the following information):

• OS: Windows 11
• Browser Chrome Version 141.0.7390.125
• Node v24.10.0
• playwright/js v1.56.1
• allure 3 v3.0.0-beta.22

[epszaw]

Hey there! I had tried to reproduce the problem but had no luck. Could you please create a repository where I'll be able to reproduce the issue? It'd help a lot.

[Valiantsin2021]

Hi, sure - here is a repo - https://github.com/Valiantsin2021/allure-issue

[epszaw]

Everything works.

I can recommend you:

1. Update the report to the latest version
2. Use npx allure open <path_to_the_report> to open the report (in your case it's npx allure open ./report/allure-report )
3. No need to call allure report after tests because allure run already generates the report right after the tests

Hope it'll help you.

[Valiantsin2021]

yes I followed your recommendations, but still no luck.

[nabil-ziani]

I have the same issue

[epszaw]

Hi, sure - here is a repo - https://github.com/Valiantsin2021/allure-issue

Opened pull request to the PR (Valiantsin2021/allure-issue#1).

The PR includes updated allure3 to the latest version and re-generated report (just ran npm run report command) – everything works as expected.

Please check the PR.