fix: quote font names

Author: jason10lee

newspack-theme/functions.php

@@ -429,7 +429,7 @@ function newspack_content_width() {
  * Return the list of custom fonts in use.
  */
 function newspack_get_used_custom_fonts(): array {
-	return array_filter( array( get_theme_mod( 'font_header', '' ), get_theme_mod( 'font_body', '' ) ) );
+	return array_values( array_filter( [ get_theme_mod( 'font_header', '' ), get_theme_mod( 'font_body', '' ) ] ) );
 }
 
 /**

newspack-theme/js/src/font-loading.js

@@ -1,5 +1,10 @@
 const fontsToLoad = window.newspackFontLoading?.fonts || [];
-Promise.all( fontsToLoad.map( fontName => document.fonts.load( `1rem ${ fontName }` ) ) ).then( res => {
+Promise.all(
+	fontsToLoad.map( fontName => {
+		const escapedFontName = String( fontName ).replace( /"/g, '\\"' );
+		return document.fonts.load( `1rem "${ escapedFontName }"` );
+	} )
+).then( res => {
 	if ( res.length === fontsToLoad.length ) {
 		document.body.classList.remove( 'newspack--font-loading' );
 	}