首页经常加载失败，右侧列表无法显示，报js错误

[iuwai]

Uncaught TypeError: Cannot read property 'config' of undefined
at s (scrollreveal.min.js:1)
at i.reveal (scrollreveal.min.js:1)
at VM1376 main.js:131
at Object.execCb (require.min.js:1)
at Module.check (require.min.js:1)
at Module. (require.min.js:1)
at require.min.js:1
at require.min.js:1
at each (require.min.js:1)
at Module.emit (require.min.js:1)

[TitanEngine0xFF]

themes/yelee/layout/_partial/head.ejs
have something problem in this file
search: <%= theme.search.on %>
a bug code!!

fix :
_config.xml default settings like following
search:onload:false

change it to following

search:
#on: true
on: false