yii\web\JqueryAsset 设置 sourcePath 打开系统变的极慢，直接超时，这是怎么回事？ [ 求助交流 ]

在main的文件里设置如下

 'assetManager' => [
	'forceCopy' => YII_DEBUG ? true : false,
	'bundles' => [
		'yii\web\JqueryAsset' => [
			'jsOptions'=>[
				'position'=>\yii\web\View::POS_HEAD,
			],
			//'sourcePath' => '@webroot/metronic453/global/plugins',
			'js' => [
				YII_DEBUG ? 'jquery.min.js' : 'http://cdn.bootcss.com/jquery/1.11.3/jquery.min.js',
			]
		],
		'yii\bootstrap\BootstrapAsset' => [
			'sourcePath' => '@webroot/metronic453/global/plugins/bootstrap/css',
			'css' => [
				YII_DEBUG ? 'bootstrap.min.css' : 'https://cdn.bootcss.com/bootstrap/3.3.6/css/bootstrap.min.css',
			]
		],
		'yii\bootstrap\BootstrapPluginAsset' => [
			'sourcePath' => '@webroot/metronic453/global/plugins/bootstrap/js',
			'js' => [
				YII_DEBUG ? 'bootstrap.min.js' : 'https://cdn.bootcss.com/bootstrap/3.3.6/js/bootstrap.min.js',
			]
		],
	],
],