Actual behavior

I had a test that ultimately boiled down to the following Jasmine expectation:

expect('http://www.google.com/base/').toEqual('http://www.example.com/base/');

As the failure message, I get:

Expected '' to equal ''

This was quite puzzling and a pain to isolate to karma in my real scenario.

Expected behavior

Clear message as given by Jasmine directly:

Expected 'http://www.google.com/base/' to equal 'http://www.example.com/base/'.

I think this issue relates to the URL_REGEXP in Karma's reporter.js but I haven't dived deep enough to follow what's going on there.

Environment Details

• Karma version (output of karma --version):

Karma version: 1.1.0

• Relevant part of your karma.config.js file

Minimal jasmine config.

Steps to reproduce the behaviour

1. Checkout https://github.com/mthx/karma-error-reporting-issue
2. npm install
3. npm run test-jasmine
4. npm run test-karma
5. Note the failures from the latter have empty strings as URLs in the error message