Web Font Loader multiple font weights

Question

I am using Web Font Loader to load a font from Google webfonts but it seems to only load the 400 weight. I wish to included 300, 400, 700 but cannot find a way to do it.

  WebFontConfig = {
    google: { 
      families: ['Open Sans'] 
    }
  };

  (function() {
    var wf = document.createElement('script');
    wf.src = ('https:' == document.location.protocol ? 'https' : 'http') +
        '://ajax.googleapis.com/ajax/libs/webfont/1.4.7/webfont.js';
    wf.type = 'text/javascript';
    wf.async = 'true';
    var s = document.getElementsByTagName('script')[0];
    s.parentNode.insertBefore(wf, s);
  })();

Answer 1

I found this solution which worked.

  WebFontConfig = {
    google: { 
      families: ['Open Sans:300,400,700']
    },