1888138 - Baidu Maps page sometimes forever loading

Status: NEW

(Web Compatibility :: Knowledge Base, defect, P2)

Description

[YF (Yang)]

Attachment: screen record.mp4

STR:
Just opening one or more Baidu Map homepage.

Actual results:
You may see the page takes forever to load. I saw this problem about 20%~60% probability. That favicon won't show up. The webpage functionality is normal.

https://share.firefox.dev/3IWVbDI (profiler.firefox.com in Fx125)

I seem to be able to reproduce the problem in Fx125.0b3, 111, 91 and 55, but Fx20, 30, 44 looks good.

Uncertain regression range:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=8cb42e7a16b42162c9930f37b9e1f820c2eb126b&tochange=2e50b83954e62d52d2ef294e850c4380d457d96a

At least one other user can reproduce this issue.

Comment 1

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

The bug has a release status flag that shows some version of Firefox is affected, thus it will be considered confirmed.

Comment 2

[Sunil Mayya]

Thank you for filing the bug report and sharing the profile.

I just checked the logs.
From the networking side, I don't see any problems. All the requests across the networks were successful.
Favicon was loaded as well

(nsHttp) HttpChannelChild::AsyncOpen [this=1de50800 uri=https://map.baidu.com/favicon.ico]

....
(nsHttp) HttpChannelChild::DoOnDataAvailable [this=1181ec00]
(nsHttp) nsHttpCompressConv 16888100 OnDataAvailable aSourceOffset:0 count:888
(nsHttp) nsHttpCompresssConv 16888100 brotlihandler decompress 888

...
(nsHttp) HttpChannelChild::OnStopRequest [this=1181f600 status=0]

Comment 3

[Sunil Mayya]

We need to further check why loading is not completed from DOM side.

Comment 4

[YF (Yang)]

(In reply to Sunil Mayya from comment #3)

We need to further check why loading is not completed from DOM side.

So this bug need moving the component or needinfo?

Comment 5

[Sunil Mayya]

(In reply to YF (Yang) from comment #4)

(In reply to Sunil Mayya from comment #3)

We need to further check why loading is not completed from DOM side.

So this bug need moving the component or needinfo?
We need to check why the favicon is not getting displayed even though page is fully functional and the favicon is loaded from the network.
Moving this to tabbed browser component for further analysis.

Comment 6

[Valentin Gosu [:valentin] {{ PTO 2 - 12 April }}]

I see the page keeps making requests to:
https://map.baidu.com/?newmap=1&qt=image&type=2&auth=xYZBdJ5ad1V5vbACL4Zye%40DPMPXQE8KHuxNxBHxRHRLtAAAyOS7A7OvCuyAT9xXwvkGcuVtvvhguVtvyheuVtvCMGuVtvCQMuVtvIPcuxtw8wkv7uvZgMuVtv%40vcuVtcvY1SGpuxztGn6LFcEvcPPuVtveGvuEtzhl4yYxvh3CuVtvhgMuzVVtvrMhuxLLtKhhchAZzegvcguxNxBHxRzRH&seckey=PcrH7jYMIu8B10EGtmKthhwNMj0R9l2z%2FlWrCNtnivY%3D%2C0rCrPo9zv9hwL287BvNAXSbDtuAkL33bkESS4sZZkMyNg69dezNyCWaHZXcavgVm-a2EIKvTDN-g6Ot29bc1rVqsQIyrXBRKQ76oMXmSjHExIDZge9e8OFv5KQ-HQoREY9vH2bBBClElAaCQCaMs3zw6pU_oEtEpkj6RcgkjW6k
and
https://ss0.bdstatic.com/8bo_dTSlR1gBo1vgoIiO_jowehsv/tile/?qt=vtileQuest&styles=pl&x=5&y=1&z=4&scaler=2&v=104&udt=20240418&fn=MPC_Mgr.getPoiData

Comment 7

[Kershaw Chang [:kershaw]]

I can only reproduce this issue with a debug build and logging enabled. I also observed the same behavior mentioned in comment #6, where the page keeps making requests. I couldn't find anything wrong in the log.

I assume this might be a timing issue causing the site to repeatedly load some resources. It doesn't seem like a networking bug to me; it might be a web compatibility issue.

Comment 8

[Kiddy]

In Firefox, I can often encounter this problem. Under Chrome, there is no such problem.
I'm not sure if it's the site or the browser.