Upgrade to 3.0 causing weird behavior - first entry has response but no request?
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03-06-2017, 03:16 AM
(This post was last modified: 03-06-2017 04:06 AM by shmilla.)
Post: #1
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We upgraded our private instances:
WPT 3.0 Agent 3.6.2 We currently host on Amazon (AWS). We are seeing that the first line of waterfall has no request, and a response that occurs much later than the actual page. Anyone see this? The response seems to indicate a possible P3P issue? Details: IP: 216.58.219.36 Error/Status Code: 200 Protocol: HTTP/2 HTTP/2 Stream: 1 Client Port: 61647 Request Start: 0.243 s Time to First Byte: 0 ms Content Download: 0 ms Bytes In (downloaded): 0.4 KB Bytes Out (uploaded): 0 B REQUEST IS BLANK Response: :status: 200 content-type: text/html; charset=UTF-8 strict-transport-security: max-age=86400 p3p: CP="This is not a P3P policy! See https://www.google.com/support/accounts/...1657?hl=en for more info." content-encoding: gzip date: Sun, 05 Mar 2017 13:06:51 GMT server: gws cache-control: private x-xss-protection: 1; mode=block x-frame-options: SAMEORIGIN expires: Sun, 05 Mar 2017 13:06:51 GMT set-cookie: NID=98=(REMOVED for security reasons) expires=Mon, 04-Sep-2017 13:06:51 GMT; path=/; domain=.google.com; HttpOnly alt-svc: quic=":443"; ma=2592000; v="36,35,34" See attached waterfall |
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03-07-2017, 08:04 PM
Post: #2
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RE: Upgrade to 3.0 causing weird behavior - first entry has response but no request?
Hello
It's probably an HTTP/2 request that has been PUSHed by the server Jean-pierre VINCENT braincracking.org Fork of WPT monitor private instance : https://github.com/jpvincent/WPT-server |
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03-08-2017, 02:51 AM
Post: #3
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RE: Upgrade to 3.0 causing weird behavior - first entry has response but no request?
(03-07-2017 08:04 PM)braincracking Wrote: Hello It turns out both my issues were related to some prewarming functionality in WPT for certain caches. Likely why we only saw it in our 3G tests. It sounds like a race was lost and so we see the response late. Patrick has, most awesomely, provided a patch |
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