Ticket #20012: 20012.diff

wp-includes/class-wp-editor.php

@@ -45 +45 @@
                 self::$this_tinymce = ( $set['tinymce'] && user_can_richedit() );
                 self::$this_quicktags = (bool) $set['quicktags'];
 
+                // Disable tinymce for the Amazon Silk browser, which doesn't support contentEditable.
+                if( isset( $_SERVER['HTTP_USER_AGENT'] ) && ( false !== strpos( $_SERVER['HTTP_USER_AGENT'], '; Silk/' ) ) )
+                        self::$this_tinymce = false;
+
                 if ( self::$this_tinymce )
                         self::$has_tinymce = true;