[wp-trac] [WordPress Trac] #12009: Add support for HTML 5 "async" and "defer" attributes

[WordPress Trac]

#12009: Add support for HTML 5 "async" and "defer" attributes
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 Reporter:  Otto42         |       Owner:  azaozz
     Type:  enhancement    |      Status:  reopened
 Priority:  normal         |   Milestone:  Future Release
Component:  Script Loader  |     Version:  4.6
 Severity:  normal         |  Resolution:
 Keywords:                 |     Focuses:
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Comment (by mor10):

 Replying to [comment:43 azaozz]:

 > All of this sounds pretty good, in theory. I wish we could do that right
 now. The problem is that less than 25% of the websites currently support
 HTTP/2: https://w3techs.com/technologies/details/ce-http2/all/all.

 This is where I say we (WordPress, 30% of the web if you believe the
 stats) have a role to play in moving the web forward. We also have a role
 to play in making sure we don't hold the web back. While HTTP/2 is still
 emerging, it is rapidly doing so, and the uptick will increase once Chrome
 and Firefox release their "this site is not secure" flags and GDPR come
 into effect. The way WordPress handles scripts today is not the way the
 web of right now handles scripts, nor the way modern browsers and servers
 want us to handle scripts. We need to push forward on this to establish
 best practices and grant those who want to build modern web applications
 the capability to do so without having to build around how WordPress
 handles JavaScript.

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Ticket URL: <https://core.trac.wordpress.org/ticket/12009#comment:44>
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