[position-sticky-root-scroller-with-scroll-behavior.html]
  [Sticky elements work with the root (document) scroller]
    bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1556685
    expected:
      if (os == "win") and debug and (processor == "x86"): PASS
      if (os == "mac") and not debug: PASS
      [PASS, FAIL]