如何加载font-awesome等第三方图标库

[pockry]

我将css和fonts文件夹都放在app/assets下，然后通过package.js引入，则css中的fonts相对地址出错。
通过修改debug.html和index.html引入css的话，图标不能正常显示，firefox和chrome已测试。
但是，通过使用font-awesome的第三方cdn来引入css的话，图标能够正常显示。

目前怀疑是因为router没有设置fonts文件(.woff/.ttf)，因此浏览器端无法正常识别这些文件。
firefox的控制台的错误信息如下：

downloadable font: incorrect file size in WOFF header (font-family: "Icons" style:normal weight:normal stretch:normal src index:2)
source: http://localhost:8080/assets/fonts/icons.woff semantic.min.css
downloadable font: rejected by sanitizer (font-family: "Icons" style:normal weight:normal stretch:normal src index:2)
source: http://localhost:8080/assets/fonts/icons.woff semantic.min.css

downloadable font: incorrect entrySelector for table directory (font-family: "Icons" style:normal weight:normal stretch:normal src index:3)
source: http://localhost:8080/assets/fonts/icons.ttf semantic.min.css
downloadable font: rejected by sanitizer (font-family: "Icons" style:normal weight:normal stretch:normal src index:3)
source: http://localhost:8080/assets/fonts/icons.ttf semantic.min.css
downloadable font: no supported format found (font-family: "Icons" style:normal weight:normal stretch:normal src index:4)
source: (end of source list)