问题
I'm integrating the Katex math formula rendering library into a Rails 3.2 app but the font assets keep returning a 404 error message:
Started GET "/assets/fonts/KaTeX_Math-Italic.woff"
Served asset /fonts/KaTeX_Math-Italic.woff - 404 Not Found (3ms)
ActionController::RoutingError (No route matches [GET] "/assets/fonts/KaTeX_Math-Italic.woff"):
I placed all of the fonts in the vendor/assets/fonts directory.
Without manipulating the third party JS or CSS files, how do I go about solving this?
回答1:
It turns out that all of the assets are compiled into the public/assets directory instead of being separated like public/assets/fonts, which is what Katex is expecting.
However, subdirectories of these "main" directories are retained so I moved the Katex fonts to the following directory instead:
vendor/assets/fonts/fonts/
Now the public/assets directory contains a fonts directory and the path /assets/fonts/KaTeX_Math-Italic.woff gets served just fine.
I don't like having a fonts/fonts directory so let me know if there's a more elegant way to solve this that doesn't involve manipulating the third party JS or CSS assets.
回答2:
I've made the katex gem works with Rails. It also provides server-side rendering (via ExecJS).
回答3:
Thanks guys. /fonts/fonts works for me but still have another problem when I refresh page, the fonts suddenly disappear and appear again.
I found a solution, why not put fonts/*.ttf into app/assets/images/fonts/*.ttf for dev env?
At the same time keep config/environments/development.rb still the default config.serve_static_assets = false false value.
This works for me.
来源：https://stackoverflow.com/questions/29475774/getting-katex-fonts-to-load-with-rails-asset-pipeline