Add another test case

lib/capybara/spec/session/node_spec.rb

@@ -300,6 +300,13 @@
       expect(@session.find(:button, 'Should be clickable')).to be_visible
       expect(@session.find(:button, 'Should not be clickable')).not_to be_visible
     end
+
+    it 'works with popover parents' do
+      expect(@session.find(:id, 'popover_parent')).not_to be_visible
+      expect(@session.find(:id, 'popover_child')).not_to be_visible
+      @session.click_button('Show parent popover')
+      expect(@session.find(:id, 'popover_child', text: 'Popover Contents')).to be_visible
+    end
   end
 
   describe '#obscured?', requires: [:css] do

lib/capybara/spec/views/with_html.erb

@@ -203,14 +203,22 @@ banana</textarea>
 <div>
   <div style="position: relative; overflow: hidden;">
     <button popovertarget="show">Show popover</button>
-    <%# <button style="position: absolute; top: 30px;">Can not be clicked</button> %>
-    <%# <button popover id="not_shown" style="position: absolute; top: 60px;">Should not be clickable</button>
-    <button popover id="show" style="position: absolute; top: 60px;">Should be clickable</button> %>
     <button popover id="not_shown">Should not be clickable</button>
     <button popover id="show">Should be clickable</button>
   </div>
 </div>
 
+<div>
+  <div style="position: relative; overflow: hidden;">
+    <button popovertarget="popover_parent">Show parent popover</button>
+    <div popover id="popover_parent">
+      <div id="popover_child">
+        Popover Contents
+      </div>
+    </div>
+  </div>
+</div>
+
 
 <div style='height: 1000px'>spacer</div>