Proposed changes

On Windows, file system paths are delimited with \, so by interpolating paths directly between quotation marks could potentially lead to invalid values in good cases or to an "Uncaught SyntaxError: Invalid Unicode escape sequence" in the worst case, causing tests not being able to run.

This can be reproduced when running wdio with the browser runner in a current working directory whose path includes a directory that starts with e.g. ui under Windows.

Types of changes

• 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

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 necessary documentation (if appropriate)
• I have added proper type definitions for new commands (if appropriate)

Further comments

Reviewers: @webdriverio/project-committers