Merge branch 'patch-1' of https://github.com/filfat/cordova-windows
diff --git a/template/cordova/lib/AppxManifest.js b/template/cordova/lib/AppxManifest.js
index 1875bf7..4b478de 100644
--- a/template/cordova/lib/AppxManifest.js
+++ b/template/cordova/lib/AppxManifest.js
@@ -102,7 +102,7 @@
     var root = xml.parseElementtreeSync(fileName).getroot();
     var prefixes = Object.keys(root.attrib)
     .reduce(function (result, attrib) {
-        if (attrib.indexOf('xmlns') === 0 && attrib !== 'xmlns:mp') {
+        if (attrib.indexOf('xmlns') === 0 && attrib !== 'xmlns:mp' && attrib !== 'xmlns:uap3') {
             result.push(attrib.replace('xmlns', '').replace(':', ''));
         }