1523253 - online.aussie.com.au - non-stop loading because server doesn't set END_STREAM flag

Status: RESOLVED WORKSFORME

(Web Compatibility :: Site Reports, defect, P3)

Description

[Daniel]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0

Steps to reproduce:

https://online.aussie.com.au/AHL/BankFast-Username-Logon#sst

will work fine on chrome

Actual results:

just keeps loading nothing happens

Expected results:

web page should load normally

Comment 1

[Sayed [:LiquidO2]]

I can reproduce this issue with Firefox release 64 and Nightly 66 in both Linux(x86_64) and Windows 10, 64bit.
Firefox only loads the page title and then loading spinning animation keeps spinning. Nothing of the page loads. Nothing shows up in the inspector either.

Other competing browsers like Chromium and Edge (on Windows) loads the page normally.

Comment 2

[Honza Bambas (:mayhemer)]

Please provide full logs (child processes as well) according https://developer.mozilla.org/en-US/docs/Mozilla/Debugging/HTTP_logging#Start_logging_using_command_line_arguments

Comment 3

[Kershaw Chang [:kershaw]]

I can reproduce this on my laptop. Please see the log.

https://drive.google.com/file/d/1WQoWuK926vAgUEmri4viQxgqHfvFQWgU/view?usp=sharing

From the log I can only tell:

1. This happens only when h2 is enabled.
2. It seems like that the h2 stream loading https://online.aussie.com.au/AHL/files/SuiKitchenSinkLibrary/bankfastAllMinF322.css has never got END_STREAM flag. This is the reason why the loading never ends.

Still have no idea why server doesn't send the END_STREAM flag.

Comment 4

[Kershaw Chang [:kershaw]]

I finally figured out the difference of firefox and chrome that causes this problem. On h2 requests, firefox adds "te: trailers" header, but chrome doesn't. I think this is the reason why the server doesn't set END_STREAM flag in the last data frame.
So, I think this should be a server side issue.

P.s.: I used mozregression to find out the change set that causes this issue is https://hg.mozilla.org/integration/autoland/rev/a17f755742df

Comment 5

[Kershaw Chang [:kershaw]]

Another way to simply reproduce this issue with curl: just run "curl -H "te:trailers" https://online.aussie.com.au/AHL/files/SuiKitchenSinkLibrary/bankfastAllMinF322.css".

You can see that curl is waiting forever to the END_STREAM flag.

Comment 6

[Mike Taylor [:miketaylr]]

Technically a regression, but yeah, it looks like the site is doing the wrong thing.

Comment 8

[Thomas Wisniewski [:twisniewski]]

The same issue is also hitting https://www.faelleskassen.dk/ (having Curl send a trailers header stalls like Firefox does).

Comment 10

[Matthias Versen [:Matti]]

https://www.banken.gl/Scripts/jquery-1.10.2.min.js is the URL from the dupe but should we dupe bugs if they are Tech Evangelism with different URLs ?

Comment 11

[Pascal Chevrel:pascalc (PTO until April 26)]

Is that still an issue? (I can't reproduce on Nightly with the site in comment #0)

Comment 12

[Daniel]

This website is now working normaly thanks for all your help

Comment 13

[Mike Taylor [:miketaylr]]

Cool, let's call this FIXED.