Ticket #31297: 31297.diff

src/wp-admin/js/editor.js

@@ -193 +193 @@
                 content = content.replace( /^\s+/, '' );
                 content = content.replace( /[\s\u00a0]+$/, '' );
 
+                // Convert non-breaking spaces to HTML entities
+                content = content.replace( /\u00a0/g, ' ' );
+
                 // put back the line breaks in pre|script
                 if ( preserve_linebreaks ) {
                         content = content.replace( /<wp-line-break>/g, '\n' );