Discussion on: Efficient way to cache Google Fonts with Service Worker?

[Ben Halpern]

they update the font all the time

Do you need the latest update? How much could a single font change from day-to-day?

you could save anything from fonts.gstatic.com

No more inefficient than the browser cache itself right?

[Meghan (she/her)]

Yeah, I guess I was just worried about how long it might save the woff files, which would cause my app to have a lot of data cached because I don't know the policy on how long a file has to go unused for a browser to delete it.

Thanks for the response :)

[Oleg Gromov]

If I got your thought, this policy is simply an HTTP header. Look at Expires:

http head "https://fonts.gstatic.com/s/materialiconsextended/v34/iPCrlNN5TpNi9yeZKkKxX5ZJ3j3k35k5UVopKkfl5AGglnMp3_3A8V8Ai8YosRtX.woff2"
HTTP/1.1 200 OK
Accept-Ranges: bytes
Access-Control-Allow-Origin: *
Age: 203870
Alt-Svc: hq=":443"; ma=2592000; quic=51303431; quic=51303339; quic=51303338; quic=51303337; quic=51303335,quic=":443"; ma=2592000; v="41,39,38,37,35"
Cache-Control: public, max-age=31536000
Content-Length: 62472
Content-Type: font/woff2
Date: Thu, 22 Feb 2018 22:59:16 GMT
Expires: Fri, 22 Feb 2019 22:59:16 GMT
Last-Modified: Mon, 29 Jan 2018 21:31:28 GMT
Server: sffe
Timing-Allow-Origin: *
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block

[Meghan (she/her)]

haha, would you look at that? totally forgot about Expires, thanks!

[Oleg Gromov]

Glad if it helps! NP :-)