f181926d2ebcb27e3b8004964235d37891778950 Fix: Safari 9 doesn't suppor…

…t `String.prototype.normalize`

Sync to source repo @f181926d2ebcb27e3b8004964235d37891778950

datatables.json

@@ -11,5 +11,5 @@
     ],
     "src-repo": "http://github.com/DataTables/DataTablesSrc",
     "last-tag": "2.1.6",
-    "last-sync": "a5ef81cfb42bc16cc1eb504a704e49bf51b3ac50"
+    "last-sync": "f181926d2ebcb27e3b8004964235d37891778950"
 }

js/dataTables.js

@@ -1318,8 +1318,11 @@
 		}
 
 		// It is faster to just run `normalize` than it is to check if
-		// we need to with a regex!
-		var res = str.normalize("NFD");
+		// we need to with a regex! (Check as it isn't available in old
+		// Safari)
+		var res = str.normalize
+			? str.normalize("NFD")
+			: str;
 
 		// Equally, here we check if a regex is needed or not
 		return res.length !== str.length

js/dataTables.mjs

@@ -1265,8 +1265,11 @@ var _normalize = function (str, both) {
 	}
 
 	// It is faster to just run `normalize` than it is to check if
-	// we need to with a regex!
-	var res = str.normalize("NFD");
+	// we need to with a regex! (Check as it isn't available in old
+	// Safari)
+	var res = str.normalize
+		? str.normalize("NFD")
+		: str;
 
 	// Equally, here we check if a regex is needed or not
 	return res.length !== str.length