rootWebArea scrollable=false
++genericContainer ignored
++++genericContainer
++++++iframe name='Scrollable iframe'
++++++++rootWebArea scrollable=true
++++++++++genericContainer ignored
++++++++++++genericContainer ignored
++++++++++++++genericContainer
++++++++++++++++staticText name='visible text'
++++++++++++++++++inlineTextBox name='visible text'
++++++++++++++genericContainer ignored
++++++++++++++genericContainer
++++++++++++++++staticText name='hidden from viewport'
++++++++++++++++++inlineTextBox name='hidden from viewport'