urlRoot does not work with parameters

[bennycode]

Expected behavior

• http://localhost:9876/hl?=en&id=34916909

Actual behavior

• http://localhost:9876/hl?=en/?id=34916909

Enviroment Details

• Karma version (output of karma --version): 0.13.22
• Relevant part of your karma.config.js file: urlRoot: '/hl?=en'

Steps to reproduce the behaviour

1. Add a parameter to the urlRoot in your karma.config.js file
2. Launch a test
3. Now you can see that the URL parameter is not handled as parameter

[Judimax]

according to the docs, urlRoot is treated as a path,