diff --git a/app/controllers/concerns/commentable_actions.rb b/app/controllers/concerns/commentable_actions.rb
index e1e153495..e4f8f952e 100644
--- a/app/controllers/concerns/commentable_actions.rb
+++ b/app/controllers/concerns/commentable_actions.rb
@@ -115,8 +115,8 @@ module CommentableActions
     def recover_documents_from_cache(resource)
       return false unless resource.try(:documents)
       resource.documents = resource.documents.each do |document|
-        if document.cached_attachment.present? && File.exists?(document.cached_attachment)
-          document.attachment = File.open(document.cached_attachment)
+        if document.cached_attachment.present?
+          document.attachment = URI.parse(document.cached_attachment)
         end
       end
     end
diff --git a/app/controllers/documents_controller.rb b/app/controllers/documents_controller.rb
index d246add70..200d3d142 100644
--- a/app/controllers/documents_controller.rb
+++ b/app/controllers/documents_controller.rb
@@ -45,7 +45,7 @@ class DocumentsController < ApplicationController
   end
 
   def destroy_upload
-    @document = Document.new(attachment: File.open(params[:path]))
+    @document = Document.new(attachment: URI.parse(params[:path]))
     @document.documentable = @documentable
 
     if @document.attachment.destroy
@@ -62,7 +62,7 @@ class DocumentsController < ApplicationController
     if @document.valid?
       @document.attachment_file_name = "#{Time.now.to_i} - #{@document.attachment_file_name}"
       @document.attachment.save
-      @document.cached_attachment = @document.attachment.path
+      @document.cached_attachment = URI(request.url) + @document.attachment.url
     else
       @document.attachment.destroy
     end
@@ -91,7 +91,7 @@ class DocumentsController < ApplicationController
 
   def recover_attachments_from_cache
     if @document.attachment.blank? && @document.cached_attachment.present?
-      @document.attachment = File.open(@document.cached_attachment)
+      @document.attachment = URI.parse(@document.cached_attachment)
     end
   end