Angular JS installation on netbeans

I installed Angular JS plugin on my netbeans 7 which works fine but I am unable to get the drop down directive suggestion for angular JS like ng-app, ng-model="name" etc. In fact, the HTML page shows warning Attribute "ng-app" not allowed on element "html" at this point.

I used http://plugins.netbeans.org/plugin/40296 to install plugin, below is what I did in my index.html:

<html ng-app>
<head>
    <script src="js/angular-0.9.19.min.js"></script> 
    <script src="js/angular.js"></script> 
</head>
<body>
<h1>Hello {{1+2}} </h1>

Speaking for the NetBeans team, the truth is that we would like to improve the AngularJS support going forward. In NetBeans 7.3, you are right that you will get a warning on attributes like ng-app, ng-model etc. You can get rid of this error using the hint on the first line: "Disable HTML error checking for this file". We are working on support for AngularJS and other frameworks as we speak, please follow the NetBeans Web Client blog at https://blogs.oracle.com/netbeanswebclient/ to get updates on new features coming in the next release.

You can use the data- prefix : " As Angular's attributes, at least ng-app etc. can be replaced with data-ng-app which will be valid for IDE and AngularJS as well" https://netbeans.org/bugzilla/show_bug.cgi?id=225462