diff --git a/lib/apress/api/api_controller/pagination_helper.rb b/lib/apress/api/api_controller/pagination_helper.rb
index 6d0c5a6..09f3fe1 100644
--- a/lib/apress/api/api_controller/pagination_helper.rb
+++ b/lib/apress/api/api_controller/pagination_helper.rb
@@ -27,6 +27,8 @@ def self.header_link_values(url, page_numbers)
 
             %(<#{url}>; rel="#{rel}")
           end
+        rescue Addressable::URI::InvalidURIError
+          []
         end
 
         def self.page_numbers(collection)
diff --git a/spec/helpers/paginating_cache_spec.rb b/spec/helpers/paginating_cache_spec.rb
index 982afa8..b1feb3a 100644
--- a/spec/helpers/paginating_cache_spec.rb
+++ b/spec/helpers/paginating_cache_spec.rb
@@ -19,7 +19,6 @@ def jbuild(source_key, collection)
 
   resolver = ActionView::FixtureResolver.new(partials)
   lookup_context.view_paths = [resolver]
-  allow(controller).to receive_message_chain(:request, :url).and_return('https://example.com/')
   assign(:collection, collection)
   MultiJson.load(render(template: source_key))
 end