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I use the gem pdfjs_viewer-rails for my Rails application and Carrierwave to store my PDF's on Amazon S3. When i link to a PDF-url i with the mounted route specified by the gem:

# routes.rb
mount PdfjsViewer::Rails::Engine => "/pdfjs", as: 'pdfjs'

and my view:

#_johannes_writing.html.erb
<%= link_to pdfjs.full_path(file: johannes_writing.pdf.url) do %>
<h3>Read <%= johannes_writing.title %></h3>
<% end %>

i am redirected to the correct page but the design and function is totally off. I have to reload the page to get the proper functionality (se image below )

BEFORE AND AFTER RELOAD

Now it get strange

If i go back in my browser when i'm on the pdf-view-page without reloading, the css is changed for my #_johannes_writing.html.erb view to the dark-background as the pdf-view.

If i set my layout to false in my controller, everything is working as it should. The PDF is showing the first time without reload and nothing is changed on a back. So somehow my layout CSS and HTML are interferring with the GEM even though the pdf-view is on its own route?

What can be the cause of this? I tried different opportunities with Iframe integration on its own view (like the gems dokumentation suggests), but nothing helped. Any help will be appreciated.

Best Peter

Link to project: http://inger-exner.herokuapp.com/johannes_writings (push the word "Læs" under the button to go to PDF-viewer)

Peter Højlund Palluth
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2 Answers2

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If any one has the same problem - i found a solution.
I tried with another gem: pdfjs_rails
And followed his instructions.
So my conclusion is: try this gem!

Peter Højlund Palluth
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I also tried this gem and also faced with some problem so change it to iframe with Google pdf viewer like in answer https://stackoverflow.com/a/27685952/3884750

Oleh Sobchuk
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