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TypeError: Cannot create property 'lastIndex' on string when using playwrightConfigOptions.grep in browserstack.yml #54
Description
Given configuration:
platforms:
- os: OS X
...
playwrightConfigOptions:
grep: '@myTag'
The following error happens:
Error: 2025-11-06 14:21:58 - info: [GrpcClient] PlaywrightConfig request successful
TypeError: Cannot create property 'lastIndex' on string '@myTag'
This prevents filtering Playwright tests by tags or grep in general. I cannot use the workaround of passing the grep directly to the command line because the following pattern would not be possible:
platforms:
- os: OS X
...
playwrightConfigOptions:
grep: '@slow'
- os: OS X
...
playwrightConfigOptions:
grep: '@fast'
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