222785 - exploratorium.edu - server claims it will send a chunked response, but then doesn't [was: Mozilla doesn't seem to support streaming animated jpegs?]

Status: RESOLVED FIXED

(Tech Evangelism Graveyard :: English US, defect)

Description

[rasta m0n]

User-Agent:       Mozilla/5.0 (OS/2; U; Warp 4.5; en-US; rv:1.4.1) Gecko/20031010
Build Identifier: Mozilla/5.0 (OS/2; U; Warp 4.5; en-US; rv:1.4.1) Gecko/20031010

The streaming jpeg in the middle of the screen doesn't load or even show the
first frame.  

Reproducible: Always

Steps to Reproduce:
1.go to http://cams.exploratorium.edu/CAM2/index.html in both Mozilla and
Netscape 4.x
2.Watch the animated image in the Netscape window
3.See the broken image link in the Mozilla window

Actual Results:  
Works in Netscape but not Mozilla :)

Expected Results:  
Works in Mozilla

Comment 1

[Boris Zbarsky [:bzbarsky]]

The HTTP impl in Mozilla dies on this connection... Note that the server sends
totally different headers to Mozilla and Netscape 4; no idea what it sends to
IE...  HTTP log coming up.

Comment 2

[Boris Zbarsky [:bzbarsky]]

Attachment: Log

The key part seems to be:

16386[812ef58]: http response [
16386[812ef58]:   HTTP/1.1 200 OK
16386[812ef58]:   Date: Sat, 18 Oct 2003 20:43:25 GMT
16386[812ef58]:   Server: Apache/1.3.12 (Unix) ApacheJServ/1.1.2
16386[812ef58]:   Last-Modified: Thu, 01 Jan 1970 00:00:00 GMT
16386[812ef58]:   Expires: Sat, 18 Oct 2003 20:43:26 GMT
16386[812ef58]:   Pragma: no-cache
16386[812ef58]:   Keep-Alive: timeout=15, max=100
16386[812ef58]:   Connection: Keep-Alive
16386[812ef58]:   Transfer-Encoding: chunked
16386[812ef58]:   Content-Type: multipart/x-mixed-replace;boundary=RaNd0m
16386[812ef58]: ]

(note the transfer-encoding; Netscape 4 and wget do NOT get that header).  The
next relevant part of the log seems to be:

16386[812ef58]: chunked decoder created
16386[812ef58]: nsHttpChunkedDecoder::HandleChunkedContent [count=1440]
16386[812ef58]: sscanf failed parsing hex on string [--RaNd0m]
16386[812ef58]: nsHttpTransaction::Close [this=86ce330 reason=8000ffff]

In other words, the server claims that the content is chunked-encoded, and it
doesn't seem to be....	So we bail out.

Comment 3

[Darin Fisher]

server response is invalid.  the site should be evangelized to send a meaningful
response.  (thanks bz for investigating this one!)

-> tech evang

Comment 4

[Darin Fisher]

FWIW: i suspect downgrading mozilla to HTTP/1.0 will work around this bug.

Comment 5

[Bob Clary [:bc] (inactive)]

contacted

Comment 6

[Cyrille VIVION]

[bug248549notfixed]

Comment 7

[Bill Mason]

*** Bug 157435 has been marked as a duplicate of this bug. ***

Comment 8

[Bill Mason]

*** Bug 270008 has been marked as a duplicate of this bug. ***

Comment 9

[Matthias Versen [:Matti]]

url dead