Version: **15.0.0-rc.1**
Fiddle: https://jsfiddle.net/69z2wepo/33980/ (check console)

For an example providing `NaN` to a css property will result in "_NaN is an invalid value for the fontSize css style property_".
Now I'm aware that there is an error in my code but I have no idea which component I should check.
I would like to have something like this: "_NaN is an invalid value for the fontSize style property. Check the render method of Header_".
I'll be happy to try to solve this if this is something we want to do.

};
      assign(NodeStub.prototype, ReactDOMComponent.Mixin);
      genMarkup = function(props) {
        var transaction = new ReactReconcileTransaction();
        return (new NodeStub(props))._createContentMarkup(
          transaction,
          props,
          {}
        );
      };
      this.addMatchers({
        toHaveInnerhtml: function(html) {
          var expected = '^' + quoteRegexp(html) + '$';
          return this.actual.match(new RegExp(expected));
        },
      });
    });
    it('should handle dangerouslySetInnerHTML', function() {
      var innerHTML = {__html: 'testContent'};
      expect(
        genMarkup({dangerouslySetInnerHTML: innerHTML})
      ).toHaveInnerhtml('testContent');
    });
  });
  describe('mountComponent', function() {
    var mountComponent;
    beforeEach(function() {
      mountComponent = function(props) {
        var container = document.createElement('div');
        ReactDOM.render(<div {...props} />, container);