Appears to be working in Firefox but at least Chrome & Safari are broken. Should be a really recent regression so very few possible changes to blame...

Easiest repo: the todo list on our homepage.

);
    });
    it('should warn about contentEditable and children', function() {
      spyOn(console, 'error');
      ReactDOM.render(
        <div contentEditable={true}><div /></div>,
        container
      );
      expect(console.error.argsForCall.length).toBe(1);
      expect(console.error.argsForCall[0][0]).toContain('contentEditable');
    });
    it('should validate against invalid styles', function() {
      ReactDOM.render(<div></div>, container);
      expect(function() {
        ReactDOM.render(<div style={1}></div>, container);
      }).toThrow(
        'The `style` prop expects a mapping from style properties to values, ' +
        'not a string. For example, style={{marginRight: spacing + \'em\'}} ' +
        'when using JSX.'
      );
    });
    it('should report component containing invalid styles', function() {
      var Animal = React.createClass({
        render: function() {
          return <div style={1}></div>;
        },
      });
      expect(function() {
        ReactDOM.render(<Animal/>, container);
      }).toThrow(