A comma-separated list of fonts to load glyphs from in order of preference. For example, Noto Sans Regular, Arial Unicode.
Noto Sans Regular, Arial Unicode
A Unicode range of characters to download glyphs for. Each response will contain 256 characters. For example, 0–255 includes all characters from range U+0000 to 00FF. Must be aligned to multiples of 256.
U+0000
00FF
The optional API key to authorize the request.
The map resource associated with the glyph file.