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@mccmrunal
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@mccmrunal mccmrunal commented Dec 5, 2025

Proposed changes

fixes #14730
//: # (Describe the big picture of your changes here to communicate to the maintainers why we should accept this pull request. If it fixes a bug or resolves a feature request, be sure to link to that issue.)
If the capabilities object is empty (like in the repro), the launcher mistakenly thinks it's a “parallel multiremote” run. Because of that, it ignores my new logic and falls back to using the global maxInstances instead.
I fixed it by checking that the array actually has items in it before running that check. Added a test case for this specific scenario so it doesn't slip through again.

Types of changes

  • Polish (an improvement for an existing feature)
  • Bugfix (non-breaking change which fixes an issue)
  • New feature (non-breaking change which adds functionality)
  • Breaking change (fix or feature that would cause existing functionality to not work as expected)
  • Documentation update (improvements to the project's docs)
  • Specification changes (updates to WebDriver command specifications)
  • Internal updates (everything related to internal scripts, governance documentation and CI files)

Checklist

  • I have read the CONTRIBUTING doc
  • I have added tests that prove my fix is effective or that my feature works
  • I have added the necessary documentation (if appropriate)
  • I have added proper type definitions for new commands (if appropriate)

Backport Request

//: # (The current main branch is the development branch for WebdriverIO v9. If your change should be released to the current major version of WebdriverIO (v8), please raise another PR with the same changes against the v8 branch.)

  • This change is solely for v9 and doesn't need to be back-ported
  • Back-ported PR at #XXXXX

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Reviewers: @webdriverio/project-committers

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commit: af5e59c

@mccmrunal
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Note:-

Some whitespaces are getting added to the files please ignore

@mccmrunal mccmrunal closed this Dec 5, 2025
@mccmrunal mccmrunal reopened this Dec 5, 2025
@mccmrunal mccmrunal closed this Dec 6, 2025
@mccmrunal
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U

@mccmrunal mccmrunal reopened this Dec 6, 2025
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@christian-bromann christian-bromann left a comment

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LGTM 👍

@christian-bromann christian-bromann added the PR: Bug Fix 🐛 PRs that contain bug fixes label Dec 24, 2025
@christian-bromann christian-bromann merged commit 20be6f4 into webdriverio:main Dec 24, 2025
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Hey mccmrunal 👋

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[🐛 Bug]: dynamic capabilities ignores maxInstancesPerCapability

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