MathJax add multiple packages

Question

I want to add multiple packages to MathJax. i used the line.

packages: {'[+]': ['img'],'[+]': ['physics']}

but this don't works. image is not rendered in output box. showing the same thing \img[][200px][200px]{http://www.math.union.edu/~dpvc/math/courses/MTH015/JPG/Hyperboloids.jpg}. if i include $\require{img}$ it works. also if package is like packages: {'[+]': ['img']} no special \require is not needed. How can i fix this. i am using (https://github.com/pkra/mathjax-img/) for image