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I am developing an application using AngularJS. I want to update meta tags on route change.
How can I update meta tags in AngularJS which can be shown in "view source" on the page?

here is a HTML code -

  <!DOCTYPE html>
    <html ng-app="app">
            <meta name="viewport" content="width=device-width, initial-scale=1.0">
            <meta name="fragment" content="!" />
            <meta name="title" content="Test App">
            <meta name="description" content="Test App">
            <meta name="keywords" content="Test,App">
            <link rel="stylesheet" href="css/jquery-ui-1.10.2.custom.min.css" />
            <link rel="stylesheet" href="css/extra.css" />
            <script src="js/libs/jquery-1.8.3.min.js"></script>
            <script src="js/libs/jquery-ui-1.10.2.custom.min.js"></script>
            <script src="js/libs/angular.min.js"></script>
            <script src="js/controller.js"></script>
            <script src="js/routes.js"></script>
            <div ng-controller="mainCtrl" class="main-container" loading>
                <div class="container-holder">
                    <div class="container">
                        <div ng-include src='"elements/header.html"'></div>
                        <div ng-view class="clearfix"></div>
                <div ng-controller="userCtrl" id="test">
                    <div class="container" class="login-container">
                        <div id="login-logo">
                            <img src="images/logo-300.png" alt="" class="login-img"/>
                            <br />
                            <div ng-view></div>

Best Answer:

I tweaked the answer found here to make this work on my site. You establish the meta content in the route config and then bind a function to the $routeChangeSuccess event to put the configured value into the $rootScope. As long as your meta tag is bound to the $rootScope value, everything will work out as planned.['$rootScope', function ($rootScope) {
    $rootScope.$on('$routeChangeSuccess', function (event, current, previous) {
        $rootScope.title = current.$$route.title;
        $rootScope.description = current.$$route.description;
        $rootScope.keywords = current.$$route.keywords;
angularApp.config(function ($routeProvider, $locationProvider) {
        .when('/About', {
            templateUrl: 'Features/About/About.html',
            title: 'Here's the Title',
            description: 'A Nice Description',
            keywords: 'Some, Keywords, Go, Here'
    // use the HTML5 History API
    <meta charset="utf-8" />
    <meta name="keywords" content="{{keywords}}"/>
    <meta name="description" content="{{description}}">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta name="fragment" content="!" />
    <title ng-bind="title">A Placeholder Title</title>
    <link rel="icon" href="/Images/Logo.ico">
    <base href="/" />

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