Bug 1635059 - Test expectation update for intersection-observer/cross-origin-iframe.sub.html on Windows opt. CLOSED TREE

testing/web-platform/meta/intersection-observer/cross-origin-iframe.sub.html.ini

@@ -2,4 +2,5 @@
   [First rAF]
     expected:
       if (os == "android") and not debug: ["PASS", "FAIL"]
+      if (os == "win") and not debug: ["PASS", "FAIL"]