module ActionView::Helpers::CsrfHelper - actionview-4.2.3 Documentation

# module ActionView::Helpers::CsrfHelper

### Public Instance Methods

csrf_meta_tag()

For backwards compatibility.

Alias for: csrf_meta_tags
csrf_meta_tags() click to toggle source

Returns meta tags “csrf-param” and “csrf-token” with the name of the cross-site request forgery protection parameter and token, respectively.

    <head>
      <%= csrf_meta_tags %>
    </head>

These are used to generate the dynamic forms that implement non-remote links with `:method`.

You don't need to use these tags for regular forms as they generate their own hidden fields.

For AJAX requests other than GETs, extract the “csrf-token” from the meta-tag and send as the “X-CSRF-Token” HTTP header. If you are using jQuery with jquery-rails this happens automatically.

    # File lib/action_view/helpers/csrf_helper.rb, line 20
    def csrf_meta_tags
      if protect_against_forgery?
        [
          tag('meta', :name => 'csrf-param', :content => request_forgery_protection_token),
          tag('meta', :name => 'csrf-token', :content => form_authenticity_token)
        ].join("\n").html_safe
      end
    end

Also aliased as: csrf_meta_tag