DIV-604: Adding startsWith prototype to string function when not present in case code is run in IE11 because it does not have support for the String.startsWith

edivorce/apps/core/static/js/functions.js

@@ -1,3 +1,12 @@
+// Internet Explorer 11 implementation of String does not have the startsWith function
+// so manually add it to prevent an error on load.
+if (!String.prototype.startsWith) {
+    String.prototype.startsWith = function(searchString, position){
+      position = position || 0;
+      return this.substr(position, searchString.length) === searchString;
+  };
+}
+
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