[wp-trac] [WordPress Trac] #60240: Modules API: Move the modules to the footer in classic themes

[WordPress Trac]

#60240: Modules API: Move the modules to the footer in classic themes
---------------------------+-----------------------------
 Reporter:  luisherranz    |      Owner:  (none)
     Type:  defect (bug)   |     Status:  new
 Priority:  normal         |  Milestone:  Awaiting Review
Component:  Script Loader  |    Version:
 Severity:  major          |   Keywords:
  Focuses:  javascript     |
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 In the ticket that introduced the Modules API (#56313), I added a logic
 that prints as many enqueued and preloads as possible in the head, then
 prints the remaining ones in the footer and includes the import map. I
 explain my reasoning [https://github.com/WordPress/wordpress-
 develop/pull/5818#discussion_r1446384970 in this comment].

 But @cbravobernal realized that import maps fail if they appear after the
 modules. That means that there's no other way but printing the import map
 first, and then all the modules and preloads (yes, preloads also fail!).
 So we need to check if we are on a classic or block theme, and if we are
 in a classic theme, move everything to the footer.

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Ticket URL: <https://core.trac.wordpress.org/ticket/60240>
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