175638 - Inappropriate behavior on a 412 response

Status: VERIFIED DUPLICATE of bug 175641

(Core :: Networking: HTTP, defect)

Description

[Daniel Hellerstein]

While testing the SREhttp/2 http/1.1 web server, I uncovered what I believe
to be a bug in how the IBM Web Browser 2.0 deals with If-None-Match.

1) The browser:
Mozilla
IBM Web Browser for OS/2 Version 2.0
Mozilla/5.0 (OS/2; U; Warp 4.5; en-US; rv:1.0.1) Gecko/20020919 IBM Web Browser
for OS/2

2) The problem.
  a) the browser requests  a script, using a method="POST" HTML form.
  b) the server returns a response with an etag (say, with value "ABC")
  c) a minute later, the client hits "Reload"
  d) the browser appears to send a request, with an If-None-Match: "ABC"
     request header
  e) the server notes that the contents have not changed, hence the etag
     is the same -- it is still "ABC". 
     Given that the If-None-Match Etag sent by the browser matches (they are

Comment 1

[Boris Zbarsky [:bzbarsky]]

sounds like http networking, though the rest of that comment would be nice to
have... ;)

Comment 2

[Alex Bishop]

Looks like bug 175641 has the unabridged version.

*** This bug has been marked as a duplicate of 175641 ***

Comment 3

[Tom Everingham]

verified duplicate