diff --git a/src/services/olHelpers.js b/src/services/olHelpers.js
index 34ca94d6..45bdd962 100644
--- a/src/services/olHelpers.js
+++ b/src/services/olHelpers.js
@@ -935,9 +935,10 @@ angular.module('openlayers-directive').factory('olHelpers', function($q, $log, $
             for (var property in layer) {
                 if (layer.hasOwnProperty(property) &&
                     // ignore props like source or those angular might add (starting with $)
-                    !property.startsWith('$') &&
-                    !property.startsWith('source') &&
-                    !property.startsWith('style')
+                    // don't use startsWith as it is not supported in IE
+                    property.indexOf('$', 0) !== 0 &&
+                    property.indexOf('source', 0) !== 0 &&
+                    property.indexOf('style', 0) !== 0
                     ) {
                     layerConfig[property] = layer[property];
                 }