Script Loader: Add support for HTML 5 "async" and "defer" attributes.

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This allows developers to register scripts with an intended loading strategy by changing the `$in_footer` parameter of `wp_register_script` and `wp_enqueue_script` to an array that accepts both an `in_footer` and `strategy` argument. If present, the loading strategy attribute will be added to the script tag when that script is printed to the page as long as it is not a dependency of any blocking scripts, including any inline scripts attached to the script or any of its dependents.

Props 10upsimon, thekt12, westonruter, costdev, flixos90, spacedmonkey, adamsilverstein, azaozz, mukeshpanchal27, mor10, scep, wpnook, vanaf1979, Otto42.
Fixes #12009.


git-svn-id: https://develop.svn.wordpress.org/trunk@56033 602fd350-edb4-49c9-b593-d223f7449a82

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Joe McGill

2023-06-26 13:40:31 +00:00

parent 4d6c6eefae

commit 613b0e7dc9

5 changed files with 1943 additions and 143 deletions

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tests/phpunit/tests/dependencies/scripts.php

+1585 -102

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