Include WickedPdfHelper::Assets in the right instance of ActionView::Base

[yoones]

Context:

A Rails application with config.action_controller.asset_host defined (CDN such as cloudfront)

Problem:

In a view rendered by a controller, asset_path returns a full url but through wicked_pdf, asset_path returns only a path (without the host), thus breaking assets provided through a CDN.

We can work around this issue by giving an absolute url to wicked_pdf_image_tag but it's not ideal.

# This won't work with a CDN
wicked_pdf_image_tag 'file.png'

# This works with a CDN
wicked_pdf_image_tag ActionController::Base.helpers.asset_path('file.png')

Solution:

I suggest to fix lib/wicked_pdf/railtie.rb to make asset_path (which is used in lib/wicked_pdf/wicked_pdf_helper/assets.rb) aware of config.action_controller.asset_host for it to work as expected.

The fix consist of including WickedPdfHelper::Assets in the right instance of ActionView::Base once it's loaded.