I have solved a few of my asset pipeline woes, but one of them remains. I have a couple of image_tags, and I want them to refer to the non-fingerprinted/hashed/digested version. Is there a way to force an image_tag (but only one or two, not application-wide) to use the non-digested version of the image?
Take a look at fingerprintless, that should do it.
Use :digest => false as an option to asset_path within image_tag
<%= image_tag(asset_path("filename.png", :digest => false)) %>
来源：https://stackoverflow.com/questions/9299724/rails-3-1-use-an-image-without-fingerprint-hash