We are using some web fonts on our site, e.g.
<link href="http://fonts.googleapis.com/css?family=Anton"
rel="stylesheet" type="text/css">
Due to a bug in IE8 that I have no desire to workaround in other ways, I'd like to recommend to our site authors that they not provide a fallback font when specifying web fonts. For example, instead of:
font-family: 'Anton', "Arial Black", sans-serif;
..do...
font-family: 'Anton';
Is there a real-world scenario where this could cause problems, i.e. why would I need to provide a fallback for a font that I am providing?
Google fonts use @font-face tag. Fallback font is suppose to keep your design/layout looking consistent when @font-face is not supported or available.
Reference: http://webdesignerwall.com/tutorials/css3-font-face-design-guide