[Regression]: HTML reporter does not open anymore after executing test through WebStorm/Intellij test runner

[Reeska]

Last Good Version

1.56.1

First Bad Version

1.57

Steps to reproduce

Configure HTML reporter in playwright config file:

export default defineConfig({
  reporter: [['html']],
  // ...

or checkout this example repo: https://github.com/Reeska/playwright-examples

Run any playwright test using test runner of WebStorm.

Expected behavior

HTML reporter opens test report.

Actual behavior

HTML reporter doesn't open test report when running playwright tests through WebStorm / Intellij / JetBrains IDEs.

Additional context

This "regression" started from v1.57 and was caused by this PR: #38044

I understand the original goal, but it causes regression in JetBrains IDEs.
A quick fix is to force process.stdin.isTTY = true but I think there could be a better solution.

Maybe it possible to detect that a test is running inside an IDE ? Or playwright config or HTML reporter could have an option to open test reporter even if TTY is undefined.

I see that Playwright Webstorm plugin set PW_TEST_REPORTER environment variable it could help.

What do you think ?

Environment

System:
    OS: macOS 26.3.1
    CPU: (16) arm64 Apple M4 Max
    Memory: 2.61 GB / 64.00 GB
  Binaries:
    Node: 22.11.0 - /Users/thomas/.nvm/versions/node/v22.11.0/bin/node
    Yarn: 1.22.22 - /Users/thomas/.nvm/versions/node/v22.11.0/bin/yarn
    npm: 10.9.0 - /Users/thomas/.nvm/versions/node/v22.11.0/bin/npm
  IDEs:
    WebStorm: 2025.3.3
  Languages:
    Bash: 3.2.57 - /bin/bash

[yury-s]

If the IDE launches the reporter from terminal, it should be interactive, otherwise it's unclear how the user closes the reporter.

I see that Playwright Webstorm plugin set PW_TEST_REPORTER environment variable it could help.

That variable is internal and is supposed to be used only in Platwright's own tests. The public API is the reporter config.