Fix issue where no parsererror is returned on invalid XML (#55)

sinonjs · Jun 2, 2018 · 9b5330f · 9b5330f · bafolts · Jun 2, 2018
1 parent 929b9fe
commit 9b5330f
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/lib/fake-xhr/index.js b/lib/fake-xhr/index.js
@@ -342,8 +342,11 @@ FakeXMLHttpRequest.parseXML = function parseXML(text) {
         try {
             if (typeof DOMParser !== "undefined") {
                 var parser = new DOMParser();
-                var parsererrorNS = parser.parseFromString("INVALID", "text/xml")
-                    .getElementsByTagName("parsererror")[0].namespaceURI;
+                var parsererrors = parser
+                    .parseFromString("INVALID", "text/xml")
+                    .getElementsByTagName("parsererror");
+                var parsererrorNS = parsererrors.length
+                    ? parsererrors[0].namespaceURI : "";
                 var result = parser.parseFromString(text, "text/xml");
                 return result.getElementsByTagNameNS(parsererrorNS, "parsererror").length
                     ? null : result;