No coverage information has been collected

[Sebastian Sandqvist]

I am running Zuul with the mocha-bdd ui and webpack via https://github.com/prometheusresearch/zuul-builder-webpack

Tests run correctly, but whenever I try to access the coverage reports, I see the message No coverage information has been collected. Is there something I need to do in order to activate code coverage?

My test script is:

zuul --local 8080 --ui mocha-bdd -- app/**/*.test.js