修复清空缓存的逻辑，修复丢失的before_reflash
As of
This script should not be not be installed directly. It is a library for other scripts to include with the meta directive // @require https://update.sleazyfork.org/scripts/480132/1349340/Get_all_img_Library.js
方便遍历网站的库，需另外调用jQuery一起使用
