From 213747fc6b22edad695607d6d7fd15abdbdbe966 Mon Sep 17 00:00:00 2001
From: Rob Garrison <wowmotty@gmail.com>
Date: Mon, 28 May 2018 15:15:07 -0500
Subject: [PATCH] Core: Ignore clicks on disabled colspan headers. Fixes #1550

Changes related to #1524
---
 js/jquery.tablesorter.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/js/jquery.tablesorter.js b/js/jquery.tablesorter.js
index 293d8b57..e17afe2d 100644
--- a/js/jquery.tablesorter.js
+++ b/js/jquery.tablesorter.js
@@ -506,10 +506,13 @@
 					return;
 				}
 				downTarget = null;
+				$cell = ts.getClosest( $( this ), '.' + ts.css.header );
 				// prevent sort being triggered on form elements
 				if ( ts.regex.formElements.test( e.target.nodeName ) ||
 					// nosort class name, or elements within a nosort container
 					$target.hasClass( c.cssNoSort ) || $target.parents( '.' + c.cssNoSort ).length > 0 ||
+					// disabled cell directly clicked
+					$cell.hasClass( 'sorter-false' ) ||
 					// elements within a button
 					$target.parents( 'button' ).length > 0 ) {
 					return !c.cancelSelection;
@@ -517,7 +520,6 @@
 				if ( c.delayInit && ts.isEmptyObject( c.cache ) ) {
 					ts.buildCache( c );
 				}
-				$cell = ts.getClosest( $( this ), '.' + ts.css.header );
 				// use column index from data-attribute or index of current row; fixes #1116
 				c.last.clickedIndex = $cell.attr( 'data-column' ) || $cell.index();
 				cell = c.$headerIndexed[ c.last.clickedIndex ][0];