teamcapybara/capybara · error · NotImplementedError

Out of browser drop emulation is not implemented for the cur

Error message

Out of browser drop emulation is not implemented for the current browser

What it means

Error "Out of browser drop emulation is not implemented for the current browser" thrown in teamcapybara/capybara.

Source

Thrown at lib/capybara/selenium/node.rb:175

  def hover
    scroll_if_needed { browser_action.move_to(native).perform }
  end

  def drag_to(element, drop_modifiers: [], **)
    drop_modifiers = Array(drop_modifiers)
    # Due to W3C spec compliance - The Actions API no longer scrolls to elements when necessary
    # which means Seleniums `drag_and_drop` is now broken - do it manually
    scroll_if_needed { browser_action.click_and_hold(native).perform }
    # element.scroll_if_needed { browser_action.move_to(element.native).release.perform }
    element.scroll_if_needed do
      keys_down = modifiers_down(browser_action, drop_modifiers)
      keys_up = modifiers_up(keys_down.move_to(element.native).release, drop_modifiers)
      keys_up.perform
    end
  end

  def drop(*_)
    raise NotImplementedError, 'Out of browser drop emulation is not implemented for the current browser'
  end

  def tag_name
    @tag_name ||=
      if native.respond_to? :tag_name
        native.tag_name.downcase
      else
        shadow_root? ? 'ShadowRoot' : 'Unknown'
      end
  end

  def visible?; boolean_attr(native.displayed?); end
  def readonly?; boolean_attr(self[:readonly]); end
  def multiple?; boolean_attr(self[:multiple]); end
  def selected?; boolean_attr(native.selected?); end
  alias :checked? :selected?

  def disabled?

View on GitHub (pinned to 15b5fdb76e)

When it happens

Trigger: Thrown at lib/capybara/selenium/node.rb:175 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of teamcapybara/capybara@15b5fdb76e (2026-08-21). Data as JSON: /api/errors/c8a4a578da814b94. Report an issue: GitHub.