your own code is loaded asynchronously with rocket.min.js, and its execution is deferred until after Dom generation.
, while on github, js, runs $('- sharpxxx') directly before dom loads.
put your code in $(document). Ready (function () {.})

I figured out that cloudflare.com will automatically give it to my website

add rocket.min.js

so my server has the asynchronous loading function mentioned above