fix check for stylesheet href

[roojs1] / roojs-bootstrap-debug.js

diff --git a/roojs-bootstrap-debug.js b/roojs-bootstrap-debug.js
index 48a8ef5..c28bd99 100644 (file)
--- a/roojs-bootstrap-debug.js
+++ b/roojs-bootstrap-debug.js
@@ -7,7 +7,7 @@ Roo.bootstrap.version = (
         function() {
                 var ret=3;
                 Roo.each(document.styleSheets, function(s) {
-                    if (typeof(s.href) != 'undefined' && s.href.match(/css-bootstrap4/)) {
+                    if ( s.href  && s.href.match(/css-bootstrap4/)) {
                         ret=4;
                     }
                 });