The HTML report can filter by failures. Clicking on the Mocha stats in the top-right to inspect the failures, while the test suite is still running, all suites that have all passing tests are still added to the page. E.g. if you have a test that fails, clicking on failures shows that test. However, every consecutive suite that passes just fine is appended (just the name) to the report. Clicking on passes and then back on failures clears these names and again only shows the failures.

Therefore, I would like to have the failures page filter out fully passing test suites while the full test suite is running. I think that after this line the code from here must be run to then hide the suite name?