If you work in two environments, for example, on the Mac side and on the Windows side, and the discrepancy appears on the Windows side only in the browser that you are trying to use in Web Fonts (IE 6+, Firefox 3.5+, Chrome 4.2+, etc. e. https://developers.google.com/webfonts/faq ), you may have a system level font with the same name as Quicksand, and that it is using a font instead. You can also try here, in particular, about the CORS issue in new versions of Firefox and IE 9+ (https://developers.google.com/webfonts/docs/troubleshooting). For example, an example page or code for how you download a font can also be useful.
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