1 files changed, 6 insertions, 1 deletions
diff --git a/testing/web-platform/tests/html/browsers/history/the-location-interface/reload_document_open_write-1.html b/testing/web-platform/tests/html/browsers/history/the-location-interface/reload_document_open_write-1.html
index 1c5a1db8f..e1a2e811c 100644
--- a/testing/web-platform/tests/html/browsers/history/the-location-interface/reload_document_open_write-1.html
+++ b/testing/web-platform/tests/html/browsers/history/the-location-interface/reload_document_open_write-1.html
@@ -3,11 +3,16 @@
 <script>
 function f() {
   opener.postMessage("original", "*");
+  if (opener.data.length >= 2) {
+    // If we proceed here, then our document.write will be racing with the
+    // setTimeout in our opener.  Just stop.
+    return;
+  }
   setTimeout(function () {
     document.open();
     document.write("<!doctype html>2<script>opener.postMessage('written', '*');<\/script>");
     document.close();
-  }), 100;
+  });
 }
 
 window.onload = f