gzip trickle test response data should be large enough to ensure we get multiple HTTP packets 
diff --git a/XMLHttpRequest/progress-events-response-data-gzip.htm b/XMLHttpRequest/progress-events-response-data-gzip.htm index d99cdc5..6331b5c 100644 --- a/XMLHttpRequest/progress-events-response-data-gzip.htm +++ b/XMLHttpRequest/progress-events-response-data-gzip.htm 
@@ -64,7 +64,7 @@  }  }), false)  // image.gif is 62 bytes compressed. Sending 21 bytes at a time with 1 second delay will load it in 3 seconds - client.open("GET", "resources/image.gif?pipe=gzip|trickle(21:d1:r2)", true) + client.open("GET", "resources/image.gif?pipe=gzip|trickle(45000:d1:r2)", true)  client.send()  })  </script>