Update font media types

[alrra]

The font top-level media type has been registered, so the new media types for font files are as follows:

Font format	Media type
collection	font/collection
otf	font/otf
sfnt	font/sfnt
ttf	font/ttf
woff	font/woff
woff2	font/woff2

See also: https://www.iana.org/assignments/media-types/media-types.xhtml#font

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@dougwilson I did run the fetch-iana script but it doesn't seem to get these updates. Let me know if you are open to updating custom.json.

[sholladay]

This would be a nice change as it is simpler and more intuitive. I am curious about browser support.

[alrra]

I am curious about browser support.

@sholladay I responded to a now deleted tweet about that.

TL;DR: browsers ignore font media types.

[dougwilson]

TL;DR: browsers ignore font media types.

Is that all browsers or only current browsers? I'd be interesting to know about current Firefox, current Firefox ESR, current Chrome, current Safari, current Edge, current IE, IE10 (probably IE9, but no lower since I think SSL is broken now on those anyway). Anything else @sholladay you would like to know about?

[sholladay]

I only personally care about latest of: Chrome, Firefox, Safari, Edge

FYI Microsoft dropped support for IE < 11 early last year and they are no longer even remotely secure, as they stopped receiving basic security patches. IE11 has approximately 13% market share and falling quickly. It is a new day!

I know the situation with fonts on mobile has traditionally been very different than desktop (e.g. for a while only SVG was supported). It wouldn't surprise me if they avoided sniffing to save battery. That is probably a bigger concern. But following the standard is a 👍 from me.

[alrra]

Is that all browsers or only current browsers?

@dougwilson The only problem was with old Blink/WebKit based browsers, which used to display a warning, but that is no longer the case.

[dougwilson]

I wonder when Apache / NGINX will update their mappings to use these new types. I'm going to see if there are bug reports in those projects. That's where our font types are coming from today, if you were wondering :)

[alrra]

I'm going to see if there are bug reports in those projects.

@dougwilson Did you manage to look into that? Thanks!

Also, in the meantime,

Let me know if you are open to updating custom.json.

[dougwilson]

Hi @alrra I didn't check yet. I can take a look now. I would prefer this remain simply an aggregation system, as in it just passes through the other sources, so unless there is some specific reason (like types that came into existence before IANA and similar, as one example) I would rather not add things to custom.json . Our font data comes from the Apache / NGINX projects currently, so updating those projects will mean we'll pull down the new mappings.

[dougwilson]

A quick search didn't find anything in the Apache HTTPD bug tracker, but found https://trac.nginx.org/nginx/ticket/1243 for NGINX.

[dougwilson]

@alrra you're welcome to make a pull request to get the types added, though that will just list the existing extensions twice until the upstream removes them.