fixed format accept

app/models/apply_job.rb

 class ApplyJob < ApplicationRecord
   VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
-  ACCEPT_CONTENT_TYPE = %w[application/pdf application/msword application/zip application/xls application/xlsx].freeze
+  ACCEPT_CONTENT_TYPE = 'application/pdf, application/msword, application/zip, application/xls, application/xlsx'.freeze
 
   belongs_to :job
   belongs_to :user

app/views/applies/new.html.slim

@@ -31,7 +31,7 @@
           = f.file_field :cv, accept: ApplyJob::ACCEPT_CONTENT_TYPE, class: 'form-control'
           = f.submit 'Confirm', class: 'btn btn-primary w-25 my-4 btn-height'
 
-= render 'validate_form'
+/ = render 'validate_form'
 = javascript_pack_tag 'validation'
 javascript:
   Validator({