我需要添加谷歌实验代码`
<!-- Google Analytics Content Experiment code -->
<script>function utmx_section(){}function utmx(){}(function(){var
k='82207727-1',d=document,l=d.location,c=d.cookie;
if(l.search.indexOf('utm_expid='+k)>0)return;
function f(n){if(c){var i=c.indexOf(n+'=');if(i>-1){var j=c.
indexOf(';',i);return escape(c.substring(i+n.length+1,j<0?c.
length:j))}}}var x=f('__utmx'),xx=f('__utmxx'),h=l.hash;d.write(
'<sc'+'ript src="'+'http'+(l.protocol=='https:'?'s://ssl':
'://www')+'.google-analytics.com/ga_exp.js?'+'utmxkey='+k+
'&utmx='+(x?x:'')+'&utmxx='+(xx?xx:'')+'&utmxtime='+new Date().
valueOf()+(h?'&utmxhash='+escape(h.substr(1)):'')+
'" type="text/javascript" charset="utf-8"><\/sc'+'ript>')})();
</script><script>utmx('url','A/B');</script>
<!-- End of Google Analytics Content Experiment code -->
`直接在特定产品的头部标签之后。所以我把这段代码不加任何添加到一个 gec.js 文件中,并将该文件放在 root/js 文件夹中。在特定产品的自定义布局更新字段中,我尝试使用调用脚本
<reference name="head">
<action method="addJs">
<script>gec.js</script>
</action>
</reference>
在前端加载产品页面后,我没有收到任何错误。但是谷歌实验代码验证失败。我怎样才能让它工作?