[FIG(quote)[
[FIGCAPTION[
[1] [CITE@en[RFC 6170 - Internet X.509 Public Key Infrastructure -- Certificate Image]]
([TIME[2015-02-01 21:57:35 +09:00]] 版)
<https://tools.ietf.org/html/rfc6170#section-5.2>
]FIGCAPTION]

> The referenced SVG file MAY be provided in GZIP-compressed '''['''RFC1952''']'''
>    form as an SVGZ file.  In this case, the extension 'svgz' is used as
>    an alias for 'svg.gz' '''['''RFC1952''']''', i.e., octet streams of type
>    image/svg+xml, subsequently compressed with gzip as specified in
>    '''['''SVGR''']'''.  The hash over the SVGZ file is calculated over the
>    decompressed SVG content with canonicalized EOL characters (<LF>) as
>    specified above.
>    When the SVG image is embedded using the "data" URL scheme as defined
>    in Section 4, SVG image data MUST be provided in SVGZ (GZIP
>    compressed) form (i.e., it MUST NOT be provided in uncompressed SVG
>    form).
> 

]FIG]

[2] [[SVG-in-OpenType]]