1790831 - Firefox cannot access the links at online.bdo.com.ph, it seems to get stuck waiting for the server to respond

Status: RESOLVED INVALID

(Core :: Networking, defect)

Description

[Thomas Wisniewski [:twisniewski]]

Attachment: net.log-main.96873.moz_log

As reported on webcompat.com, online.bdo.com.ph is freezing up after loading the initial page and then attempting to click on any link in the left or top menus.

I'm able to access the site with a VPN set to Philippines, but all I can see when I click on a link is that several requests are aborted as the page unloads, and then the request to the new page never seems to get a response (the URL bar throbber just spins, but devtools never shows a status update on the network tab for the new document).

I'm not sure how to diagnose this further, so I've captured a default-settings about:networking log after loading the page, enabling logging, and then clicking on a link.

Comment 1

[Manuel Bucher [:manuel]]

Adding See also Bug 1781083, because it is also freezing the webpage (in combination with content blocking). The referenced Bug is about freezing when receiving replies with Content-Length: 0.
This bug is about freezing when no response is received and the load times out.

Interesting comment from the webcompat github issue: https://github.com/webcompat/web-bugs/issues/110404#issuecomment-1247021818

When I visit the URL, it redirects me to this one:

https://online.bdo.com.ph/sso/login?josso_back_to=https://online.bdo.com.ph/sso/josso_security_check

And when I click on any link after that, the server never seems to actually respond.
I also see that several requests are aborted as I click the link, including a POST request to this URL:

https://online.bdo.com.ph/sso/rb_50e9b2f1-b0e2-4715-9743-be72f589d1a4?type=js3&sn=v_4_srv_1_sn_6FB83BFCB7F6289759A493B07B010EF9_perc_100000_ol_0_mul_1_app-3Aafda7651bda9a5fd_1&svrid=1&flavor=post&vi=ASDQUSKOJKOFRIFROLEHTQQDMAKPRUSV-0&modifiedSince=1662755466539&rf=https%3A%2F%2Fonline.bdo.com.ph%2Fsso%2Flogin%3Fjosso_back_to%3Dhttps%3A%2F%2Fonline.bdo.com.ph%2Fsso%2Fjosso_security_check&bp=3&app=afda7651bda9a5fd&crc=1889965894&en=orejesa5&end=1

But I don't think that's the culprit. I'm not sure how to proceed here, so I've filed bz1790831 to get some insight, with an about:networking log. Let's move this issue there.

Comment 2

[Dragana Damjanovic [:dragana]]

I looked at the logs and we do not get any response from the server. We do not know why the server is not responding. This is probably not a necko issue.

Comment 3

[Valentin Gosu [:valentin] (he/him)]

wget https://online.bdo.com.ph/
--2022-09-21 16:22:32--  https://online.bdo.com.ph/
Resolving online.bdo.com.ph (online.bdo.com.ph)... 2.23.139.106
Connecting to online.bdo.com.ph (online.bdo.com.ph)|2.23.139.106|:443... connected.
HTTP request sent, awaiting response... 

Chrome seems to load it the domain. I also managed a full load with curl, but only after using copy as curl from the Chrome devtools.
Which means that the server is behaving differently depending on the incoming headers. And indeed, removing the Chrome UA header from the command makes it time out.

I'm going to close this as invalid, as it's not a Firefox bug.