1709705 - Request timings not recorded at first load

Status: NEW

(DevTools :: Netmonitor, defect, P2)

Description

[Paul Menzel]

Attachment: nightly-90.0a1-missing-request-data.png

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0

Steps to reproduce:

Open a new private tab, then open the network analysis tools (Ctrl + e), disable caching, and load the Web site LWN.net.

Actual results:

Request details are missing for a lot of requests.

Expected results:

The request details should be shown for all requests.

Comment 1

[Paul Menzel]

Attachment: Output of `about:support`

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'DevTools::Netmonitor' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Comment 3

[Jan Honza Odvarko [:Honza] (always need-info? me)]

Attachment: image.png

Thanks for the report!

I could easily reproduce on my machine (Win10)

Comment 4

[Camelia Badau [:cbadau], Desktop Test Engineering]

Regression range:

Last good revision: e5e734f4fc196eb109e39d4f94e026cb60218991 (2021-01-21)
First bad revision: 5dc361e890c3b80e8ed645d93461520aa1fbef30 (2021-01-22)
Pushlog: https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=e5e734f4fc196eb109e39d4f94e026cb60218991&tochange=a6b9acc070e90823268b73db5bd5d62b286b2ffa

After bisection, I received this pushlog: https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=10183e73c231cb0e72e8a047f8d63913725e3705&tochange=3e1f179ab59ed167284f324867674252caccc879 (with bug 1687359).