Error: Invariant Violation: dangerouslyRenderMarkup(…): Cannot render markup in a worker thread

Question

React Tests Fails after set State causes second render

Up until now testing has been going well with JSDOM and Mocha. So far have not had to test any components t

Answer 1

The setup JSDOM setup was missing global.navigator.

global.navigator = {
   userAgent: 'node.js'
};