[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 ocean90):

 In terms of implementation, please let no change the signature of the
 current functions. Neither adding another argument nor changing the third
 argument to support an array. I think that's a bad practice even if we
 have done this in the past.

 As @georgestephanis has already suggested in comment:34, using
 `wp_script_add_data()` should be the preferred way to add support for
 this.

 But instead of using boolean values we can use a specific key like
 `script-execution` which can be `defer` '''or''' `async`:

 {{{
 wp_script_add_data( 'my-script', 'script-execution', 'defer' );
 wp_script_add_data( 'my-script', 'script-execution', 'async' );
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/12009#comment:56>
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