[wp-trac] [WordPress Trac] #44229: Use CDNs where possible to serve external assets like jQuery

[WordPress Trac]

#44229: Use CDNs where possible to serve external assets like jQuery
-------------------------+------------------------------
 Reporter:  jacklenox    |       Owner:  (none)
     Type:  enhancement  |      Status:  new
 Priority:  normal       |   Milestone:  Awaiting Review
Component:  General      |     Version:
 Severity:  normal       |  Resolution:
 Keywords:  close        |     Focuses:
-------------------------+------------------------------
Changes (by markparnell):

 * keywords:   => close


Comment:

 The performance benefits touted here are no longer relevant - browsers
 nowadays use separate caches for each domain^1^, so e.g. 2 different sites
 loading jQuery from Google would still mean the end user downloading it
 twice. As such the performance would suffer if anything, particularly if
 the origin site is using HTTP/2.

 Since there is no longer any benefit to making this change - not to
 mention the concerns raised above - I'd suggest this can be closed.

 ^1 Specific details have been difficult to track down, but as I understand
 it Firefox and Safari both already do this, and Chrome is working towards
 it (see e.g. https://www.chromestatus.com/feature/5730772021411840 and
 https://github.com/whatwg/fetch/issues/904).^

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/44229#comment:12>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform