inertia_share fails on second request

[Georg Ledermann]

I'm playing around with inertia_rails within a Rails 6 application like this:

class ApplicationController < ActionController::Base
  inertia_share do
    {
      foo: 42
    }
  end
end

This works fine on the first request (props include foo:42), but all subsequent requests fail (props not include foo:42). When I modify my source file (application_controller.rb) and change foo to 43, it works on the following one request, but the next requests will fail again.

This can be reproduced with the test suite when you swap the order of the two context blocks in this file:

inertia-rails/spec/inertia/sharing_spec.rb

Lines 4 to 18 in a27564b

 context 'using inertia share' do 
   let(:props) { {name: 'Brandon', sport: 'hockey', position: 'center', number: 29} } 
   before { get share_path, headers: {'X-Inertia' => true} } 
    
   it { is_expected.to eq props } 
 end 
  
 context 'inertia share across requests' do  
   before do 
     get share_path, headers: {'X-Inertia' => true}  
     get empty_test_path, headers: {'X-Inertia' => true} 
   end 
  
   it { is_expected.to eq({}) } 
 end 

Seems to be caused by #13.