How to measure common coverage for Polymer components + .js files?

Question

How to measure common coverage for Polymer components with all .js files in solution (for non-component tests QUnit is used)?

I tried karma-coverage, but i

Answer 1

@tony19, this PR fixes the web-component-tester-istanbul plugin to support WCT >= 6.4.0 https://github.com/thedeeno/web-component-tester-istanbul/pull/45