javascript - Rails data-remote attribute not always requesting a JS response -


i have form_for remote: :true, problem seems submitted remotely half of time. actioncontroller::unknownformat (actioncontroller::unknownformat) error server, configured respond format.js, , of time form work perfectly.

is there way can call $.rails make sure data-remote binding taking effect? have turbolinks turned off. here code form:

= form_for [:admin, @seating_chart], remote: 'true', authenticity_token: true, multipart: true |f|     %br     .form-group.text-center       = f.label :name       = f.text_field :name, class: 'form-control'     .form-group.text-center       = f.label :venue_id       = f.collection_select :venue_id, venue.all, :id, :name     .form-group.text-center       = f.label :chart_image       = f.file_field :chart_image, id: :seating_chart_file     .actions.text-center       = f.submit 'save', class: 'btn btn-primary'       \|       = link_to 'back', :back, class: 'btn btn-primary'

edit: upon further investigation seems happen when upload image - if don't upload image error doesn't occur.

since trying upload file ajax request can't achieved directly. solution case remotipart

remotipart

and demo of it

demo


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