143844 - pipelining causes download save dialog to appear

Status: VERIFIED WORKSFORME

(Core :: Networking: HTTP, defect)

Description

[[e-mail]]

Build 2002050809/linux:
When visiting the URL http://newstoday.com/ a save dialog appears,
asking me what i want to do with a file of type application/x-httpd-php 
(open or save). 
This dialog does not appear if I switch off http pipelining.

Comment 1

[Andreas Kunz]

This does not happen with 2002051006 on Win2k here.

Comment 2

[Andreas Kunz]

Also WFM in 2002051204 (trunk build, while the above was RC2). Sorry for the spam.

Comment 3

[Gary Shanden]

WFM (but slooooowly) in linux, build 2002050709, with pipelining on.

With pipelining off, the page loads quickly but with a different layout. 
I will file a separate bug report for this.

Comment 4

[[e-mail]]

Attachment: The file that I get a save prompt for: forum_front.php

When pipelining is enabled I get prompted to save or open this file.
In that case, the third column is usually messed up showing very
strange content and seemingly having repaint problems (i.e. moving 
another window over that area leaves traces)

Comment 5

[Cesar Eduardo Barros]

I've seen the application/x-httpd-php save dialog too, several times. It appears
randomly, and it's hard to reproduce. I'm using 2002051010.

To cause it, I go to
http://www.megatokyo.com/ubbthreads/postlist.php?Cat=&Board=UBB8 and
middle-click (open in a new tab) on every thread subject. I have pipelining
turned on.

Usually, 1-3 of the tabs generate the save dialog, while the rest load normally.
It might be triggered by my flakey connection.

Comment 6

[Andreas Kunz]

To the previous comment:
I did this (with pipelining enabled) in the trunk build from May-28 and then
again with RC2 and there was no save dialog... maybe there is another cause?

Comment 7

[Cesar Eduardo Barros]

OK, I managed to reproduce it (the flakey connection I have does seem to help)
at will. So, I asked on #mozilla for directions, and they came with
NSPR_LOG_MODULES=nsHTTP:5 NSPR_LOG_FILE=httplog. I will attach the trace as soon
as bugzilla allows me to (I got one application/x-httpd-php save dialog this time).

Comment 8

[[e-mail]]

Attachment: What I get with 1.0

I retried this with 1.0 (2002052918/linux). With this version I didn't get
the save dialog (yet?). Instead I see random frames show raw HTTP responses
in ASCII, including headers or CSS styles like in this example.

Comment 9

[[e-mail]]

Attachment: Another odd example with 1.0

Comment 10

[Cesar Eduardo Barros]

btw, I didn't reproduce it on the original site, but in another one. Still
waiting for my flakey link to upload the trace.

Comment 11

[Cesar Eduardo Barros]

Attachment: Trace of session reproducing the problem

I managed to reproduce it 3 times in a row (and probably could reproduce more
if I wanted), so I grabbed a trace. The application/x-httpd-php save dialog
defaults to the name "banner.php", so that's the problematic frame (all three
times -- this trace has only one of them).

This was reproduced in a chat application I'm developing. Feel free to go there
if you want to reproduce the bug report. You need HTTP/1.1, keepalive and
pipelining to reproduce AFAIK.

The trace was made on Linux with 2002061108 (1.1a). And it wasn't my flaky link
-- I'm using a fast and stable one now.

Comment 12

[Cesar Eduardo Barros]

BTW, if you want to reproduce, you need to put "teste" in the first field of the
index page -- it's the only value that works (I hoped it would show in the
traces, but looks like I was wrong). The second field must not be empty.

Comment 13

[Kai Lahmann (is there, where MNG is)]

WFM with trunk 2002073022, linux. reporter: can you reproduce this bug with a
recent build of mozilla (for example, 1.1beta)? if so, please comment again with
details. if not, please resolve this bug as WORKSFORME. thanks.
Some bugs with pipelining got fixed recently, so I expect it is gone.

Comment 14

[Cesar Eduardo Barros]

WFM 2002072204 (1.1beta) on my testcase (http://www.elnet.com.br/batepapo/); I
recall seeing it recently (once) but can't recall if it was on this or the old
nightly I was using before (9 July from the mozillazine build bar).

Comment 15

[Kai Lahmann (is there, where MNG is)]

ok, so we can call it gone.

Comment 16

[John Unruh]

Verified WFM.