TinyMCE: switch off concatenation when a custom TinyMCE theme is used. Prevents conflict with the default theme as it loads first.

azaozz · azaozz · commit 29a63fe774c4 · 2018-05-10T19:49:32.000Z
Props programmin, azaozz. Fixes #43969. git-svn-id: https://develop.svn.wordpress.org/trunk@43222 602fd350-edb4-49c9-b593-d223f7449a82
diff --git a/src/wp-includes/class-wp-editor.php b/src/wp-includes/class-wp-editor.php
@@ -1411,8 +1411,16 @@ public static function print_tinymce_scripts() {
 		$version = 'ver=' . $tinymce_version;
 		$baseurl = self::get_baseurl();
 
+		$has_custom_theme = false;
+		foreach ( self::$mce_settings as $init ) {
+			if ( ! empty( $init['theme_url'] ) ) {
+				$has_custom_theme = true;
+				break;
+			}
+		}
+
 		$compressed = $compress_scripts && $concatenate_scripts && isset( $_SERVER['HTTP_ACCEPT_ENCODING'] )
-			&& false !== stripos( $_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip' );
+			&& false !== stripos( $_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip' ) && ! $has_custom_theme;
 
 		// Load tinymce.js when running from /src, else load wp-tinymce.js.gz (production) or tinymce.min.js (SCRIPT_DEBUG)
 		$mce_suffix = false !== strpos( get_bloginfo( 'version' ), '-src' ) ? '' : '.min';
