Rails 3 Wicked-pdf open pdf in new window from a form submit -


i have rails 3 index view contains form because there checkboxes select rows , submit button create pdf of selected records using wicked-pdf.

i pdf open in new browser tab. included :target => "_blank" in submit, it's not working.

this view:

<%= form_tag costprojects_viewprojects_path(format: "pdf") %> ... <td><%= check_box_tag "costproject_ids[]", costproject.id %></td> ... <%= submit_tag "pdf selected", :target => "_blank", :class => 'btn btn-success' %>

controller action:

  def viewprojects     @costprojects = costproject.find(params[:costproject_ids])     respond_to |format|       format.html       format.pdf         render  :pdf => "costprojects.pdf",                 :show_as_html => params[:debug].present?,                 :page_size  => 'letter'       end     end   end

thanks help!

try 

<%= submit_tag "pdf selected", :formtarget => "_blank", :class => 'btn btn-success' %>

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