Themes: Remove local() from @font-face styles in _wp_theme_json_webfo…

…nts_handler().

Removes adding `local()` as a `@font-face` `src` within `_wp_theme_json_webfonts_handler()`.

Why?

To fix font incompatibilities when a user has the font-family locally installed on their viewing computer or device. It's unknown if all of the font-face variations specified by theme.json and/or global styles are:

* installed on the user's computer/device.
* and in one file or multiple files.

The previous implementation used the `src` specified when registering the font with the API. That src will likely vary from user computer/device to user computer/device.

To avoid these unknowns which could cause incompatibilities or styling issues, this changeset removes adding `local()` to the generated font-face CSS styles.

References:
* [WordPress/gutenberg#47254 Gutenberg PR 47254]

Follow-up to [53282].

Props luehrsen, aristath, ehtmlu, hellofromTonya, wetah.
Fixes #57430.
Built from https://develop.svn.wordpress.org/trunk@55314


git-svn-id: http://core.svn.wordpress.org/trunk@54847 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/script-loader.php

@@ -3520,13 +3520,14 @@ function _wp_theme_json_webfonts_handler() {
 	 * Compiles the 'src' into valid CSS.
 	 *
 	 * @since 6.0.0
+	 * @since 6.2.0 Removed local() CSS.
 	 *
 	 * @param string $font_family Font family.
 	 * @param array  $value       Value to process.
 	 * @return string The CSS.
 	 */
 	$fn_compile_src = static function( $font_family, array $value ) {
-		$src = "local($font_family)";
+		$src = '';
 
 		foreach ( $value as $item ) {
 
@@ -3542,6 +3543,8 @@ function _wp_theme_json_webfonts_handler() {
 				: ", url('{$item['url']}') format('{$item['format']}')";
 		}
 
+		$src = ltrim( $src, ', ' );
+
 		return $src;
 	};
 

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.2-beta1-55313';
+$wp_version = '6.2-beta1-55314';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.