use meta tags to pass CSRF token.

framework/yii/assets/yii.js

@@ -43,12 +43,19 @@
  */
 yii = (function ($) {
 	var pub = {
-		// version of Yii framework
-		version: '2.0',
-		// CSRF token name and value. If this is set and a form is created and submitted using JavaScript
-		// via POST, the CSRF token should be submitted too to pass CSRF validation.
-		csrfVar: undefined,
-		csrfToken: undefined,
+		/**
+		 * @return string|undefined the CSRF variable name. Undefined is returned is CSRF validation is not enabled.
+		 */
+		getCsrfVar: function() {
+			return $('meta[name=csrf-var]').attr('content');
+		},
+
+		/**
+		 * @return string|undefined the CSRF token. Undefined is returned is CSRF validation is not enabled.
+		 */
+		getCsrfToken: function() {
+			return $('meta[name=csrf-token]').attr('content');
+		},
 
 		initModule: function (module) {
 			if (module.isActive === undefined || module.isActive) {

framework/yii/base/View.php

@@ -12,6 +12,7 @@ use yii\helpers\FileHelper;
 use yii\helpers\Html;
 use yii\web\JqueryAsset;
 use yii\web\AssetBundle;
+use yii\web\Request;
 use yii\widgets\Block;
 use yii\widgets\ContentDecorator;
 use yii\widgets\FragmentCache;
@@ -708,6 +709,13 @@ class View extends Component
 		if (!empty($this->metaTags)) {
 			$lines[] = implode("\n", $this->metaTags);
 		}
+
+		$request = Yii::$app->getRequest();
+		if ($request instanceof Request && $request->enableCsrfValidation) {
+			$lines[] = Html::tag('meta', '', array('name' => 'csrf-var', 'content' => $request->csrfVar));
+			$lines[] = Html::tag('meta', '', array('name' => 'csrf-token', 'content' => $request->getCsrfToken()));
+		}
+
 		if (!empty($this->linkTags)) {
 			$lines[] = implode("\n", $this->linkTags);
 		}

framework/yii/web/YiiAsset.php

@@ -23,19 +23,4 @@ class YiiAsset extends AssetBundle
 	public $depends = array(
 		'yii\web\JqueryAsset',
 	);
-
-	/**
-	 * @inheritdoc
-	 */
-	public function registerAssets($view)
-	{
-		parent::registerAssets($view);
-		$js[] = "yii.version='" . Yii::getVersion() . "';";
-		$request = Yii::$app->getRequest();
-		if ($request instanceof Request && $request->enableCsrfValidation) {
-			$js[] = "yii.csrfVar='{$request->csrfVar}';";
-			$js[] = "yii.csrfToken='{$request->csrfToken}';";
-		}
-		$view->registerJs(implode("\n", $js), View::POS_END);
-	}
 }