[wp-trac] [WordPress Trac] #57814: Use `wp_theme_has_theme_json` in `_wp_theme_json_webfonts_handler`

[WordPress Trac]

#57814: Use `wp_theme_has_theme_json` in `_wp_theme_json_webfonts_handler`
---------------------------+------------------------------
 Reporter:  spacedmonkey   |       Owner:  (none)
     Type:  defect (bug)   |      Status:  new
 Priority:  normal         |   Milestone:  Awaiting Review
Component:  Script Loader  |     Version:  6.0
 Severity:  normal         |  Resolution:
 Keywords:  has-patch      |     Focuses:  performance
---------------------------+------------------------------

Comment (by flixos90):

 Replying to [comment:9 spacedmonkey]:
 > @flixos90 I don't think the FE performance is the only metric we judge
 things on. If this had no FE benefit, it would still be worth doing.
 >
 > As you can see from the above screenshots are the the posts REST API
 endpoint, there is a nearly 4ms improvement.

 I didn't say that it was the only metric, I said it was the most important
 one. Frontend performance affects every WordPress experience a website
 visitor has, except for a small fraction of headless sites. The horizontal
 impact of performance in the REST API is far lower. I'm not saying it is
 not important, but it is ''less'' important.

 Anyway, this is a very promising enhancement when it comes to performance.
 However, we shouldn't commit this without figuring out why rendering the
 template sees a regression. I would love for this change to land, but we
 need to take the time and figure out the one remaining issue here before
 we can reasonably commit it.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/57814#comment:11>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform