We have two cases when it possible

• In latest version of karma-jasmine when test contain variable which does not defined we have error message:

ReferenceError: plus is not defined in https://localhost:9876/base/test.js?5e4e9f0005ec2172d5edc1234305ab74e3267861 (line 6)

• Firefox sometimes throw error with formatted stack trace. (NOTE: Maybe it's first case)
• Rare case. User can define test cases or test suites which contain url, for example:

it('should go to the https://lolcalhost/base/rest', function(){...})

In those three cases reporter.js breaks with error:

ERROR [karma]: [TypeError: Line must be greater than or equal to 1, got 0]
TypeError: Line must be greater than or equal to 1, got 0