1909666 - For website https://www.frankfurt-marathon.com/ firefox 128 does not finish loading the initial request

Status: VERIFIED FIXED

(Core :: Networking: HTTP, defect, P1)

Description

[Simon Weber]

Steps to reproduce:

Open https://www.frankfurt-marathon.com/ in Firefox 128.0 or 128.0.2
In Firefox 127.0 it works.

Actual results:

The initial request does not finish loading.
In the Timings section of the network tab of the dev tools, only a time for "Blocked" is shown, nothing further.
There are no errors, firefox just stops loading.

Expected results:

The initial request should finish loading.

Comment 1

[Alice0775 White]

I can reproduce the issue on Nightly130.0a1 Windows11.

Regression window:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=750a9d68013bf86f5d1e16ddc95cce396fffd4a2&tochange=deedf27980767ec044741273bc0c9ad212bc4e1d

Comment 2

[Alice0775 White]

[Tracking Requested - why for this release]: Certain web pages are no longer loaded since 128. Chrome works fine.

Comment 3

[Alice0775 White]

FWIW,
The page loads as expected if set network.http.http2.enabled to false

Comment 5

[Kershaw Chang [:kershaw]]

Attachment: Bug 1909666 - Re-enable network.http.http2.enabled.deps and not send SETTINGS_NO_RFC7540_PRIORITIES, r=#necko

Comment 6

[Kershaw Chang [:kershaw]]

Attachment: Bug 1909666 - Re-enable network.http.http2.enabled.deps and not send SETTINGS_NO_RFC7540_PRIORITIES,

Original Revision: https://phabricator.services.mozilla.com/D217584

Comment 7

[Phabricator Automation]

beta Uplift Approval Request

• User impact if declined: Some sites might be failed to load
• Code covered by automated testing: no
• Fix verified in Nightly: no
• Needs manual QE test: yes
• Steps to reproduce for manual QE testing: See if https://www.frankfurt-marathon.com/ loads.
• Risk associated with taking this patch: Low
• Explanation of risk level: This patch basically reverts Firefox's behavior to what it was before.
• String changes made/needed: N/A
• Is Android affected?: yes

Comment 8

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/24739bbcfcba
Re-enable network.http.http2.enabled.deps and not send SETTINGS_NO_RFC7540_PRIORITIES, r=necko-reviewers,jesup

Comment 9

[Kershaw Chang [:kershaw]]

Comment on attachment 9414683 [details]
Bug 1909666 - Re-enable network.http.http2.enabled.deps and not send SETTINGS_NO_RFC7540_PRIORITIES,

ESR Uplift Approval Request

• If this is not a sec:{high,crit} bug, please state case for ESR consideration: Some websites might be failed to load.
• User impact if declined: Some websites might be failed to load.
• Fix Landed on Version: 130
• Risk to taking this patch: Low
• Why is the change risky/not risky? (and alternatives if risky): This patch basically reverts Firefox's behavior.

Beta/Release Uplift Approval Request

• User impact if declined: Some websites might be failed to load.
• Is this code covered by automated tests?: No
• Has the fix been verified in Nightly?: Yes
• Needs manual test from QE?: Yes
• If yes, steps to reproduce: Test if Firefox can load https://www.frankfurt-marathon.com
• List of other uplifts needed: N/A
• Risk to taking this patch: Low
• Why is the change risky/not risky? (and alternatives if risky): This patch basically revert Firefox's behavior.
• String changes made/needed: N/A
• Is Android affected?: Yes

Comment 10

[pstanciu]

https://hg.mozilla.org/mozilla-central/rev/24739bbcfcba

Comment 11

[Pulsebot]

https://hg.mozilla.org/releases/mozilla-beta/rev/83d1b05124ed

Comment 12

[Donal Meehan [:dmeehan]]

Comment on attachment 9414683 [details]
Bug 1909666 - Re-enable network.http.http2.enabled.deps and not send SETTINGS_NO_RFC7540_PRIORITIES,

Approved for 128.1esr.

Comment 13

[Pulsebot]

https://hg.mozilla.org/releases/mozilla-esr128/rev/f2b2ddeea7c5

Comment 14

[Alexandru Trif, Desktop Test Engineering [:atrif]]

Reproduced the issue with Firefox 128.0.2 on Windows 10x64. Nothing happens when loading https://www.mapbusinessonline.com/ or https://www.frankfurt-marathon.com/ pages.
The issue is verified fixed with Firefox 130.0a1 (2024-07-25) on Windows 10x64, macOS 12 and Ubuntu 23.10. The https://www.mapbusinessonline.com/ and https://www.frankfurt-marathon.com/ pages are successfully loaded.

Comment 15

[Simon Weber]

First time opening a ticket here, totally impressed by how quickly & efficiently you all handled the issue 💪
Really big fan of Firefox 🔥🦊

Comment 16

[Ryan VanderMeulen [:RyanVM]]

Comment on attachment 9414683 [details]
Bug 1909666 - Re-enable network.http.http2.enabled.deps and not send SETTINGS_NO_RFC7540_PRIORITIES,

Approved for 128.0.3

Comment 17

[Pulsebot]

https://hg.mozilla.org/releases/mozilla-release/rev/2c4e70c98982

Comment 18

[Ryan VanderMeulen [:RyanVM]]

Added to the 128.0.3 relnotes.

Fixed an issue causing some sites to not load when connecting via http2.

Comment 20

[Alexandru Trif, Desktop Test Engineering [:atrif]]

Verified fixed with Firefox 129.0b9 (20240725121549) from comment 11, 128.1esr (20240725124505) and 128.0.3. The https://www.mapbusinessonline.com/ and https://www.frankfurt-marathon.com/ pages are successfully loaded.

Comment 21

[Vasilica Tamas QA [:vtamas]]

This issue was verified as fixed on Firefox Nightly 130 (2024-07-25), Firefox RC 128.0.3, Focus Nightly 130 (2024-07-25) and Focus 128.0.3 on Samsung S23 Ultra (Android 14) and Lenovo Yoga Tab 11 (Android 12). The https://www.mapbusinessonline.com/ and https://www.frankfurt-marathon.com/ pages are successfully loaded.