subset parameter in URL is ignored for resulting CSS

[alistairjcbrown]

Setting the subset parameter is ignored and all languages are output in the resulting CSS.
These URLs have been generated from the quick use page.

Example

Requesting "Open Sans, Light 300"

Default (Latin)

http://fonts.googleapis.com/css?family=Open+Sans:300

Output contains all languages

/* cyrillic-ext */
  ...
}
/* cyrillic */
  ...
}
/* greek-ext */
  ...
}
/* greek */
  ...
}
/* vietnamese */
  ...
}
/* latin-ext */
  ...
}
/* latin */
  ...
}

Setting specifically (Greek)

http://fonts.googleapis.com/css?family=Open+Sans:300&subset=greek

Output contains all languages

/* cyrillic-ext */
  ...
}
/* cyrillic */
  ...
}
/* greek-ext */
  ...
}
/* greek */
  ...
}
/* vietnamese */
  ...
}
/* latin-ext */
  ...
}
/* latin */
  ...
}

[davelab6]

This is working as intended :)

You're using a browser with support for unicode-range (eg, Chrome) which is in your .... That means the font files are only fetched when the DOM includes characters that require them.

One can be a little misled by page load impact graphics, which show what would happen to browsers for which unicode-range is not supported; but those browsers are always served CSS that enumerates only the subset-requested files.

[alistairjcbrown]

@davelab6 TIL - thanks!
I'd forgotten that the CSS returned is tailored to the requesting browser.