.up { background-image: url(\'/design-library/profound_test/images/cab_images/white-arrow-up.png\') 50% 50% no-repeat; }
This code is giving me an
Chrome* will also throw this warning (and doesn't display the bg image), if you have a blank space between url and ( like:
background-image: url ('img/web-bg.png');
^
(Which was the reason for me to search and find this question but no answer and then doing trial and error.)