35934 - crash: selecting <option value="foo"></option> in dropdown listbox

Status: VERIFIED FIXED

(Core :: Layout: Form Controls, defect, P3)

Description

[Daniel McAuliffe]

Overview Description:

An illegal operation error is occuring when selecting a blank option from a
combo box within the http://disney.go.com/home page

Steps to Reproduce:
1)From the Debug - Verification menu option within Mozilla select Disney.

2)Disney homepage should open.  Wait until it has fully loaded.

3)Just under the Disney directory there are three combo boxes.  Select from the
Entertainment combo box the blank option.

4)The illegal option error message should appear.

Actual Results:

MOZILLA caused an invalid page fault in
module GKHTML.DLL at 0167:0158abc7.
Registers:
EAX=00000000 CS=0167 EIP=0158abc7 EFLGS=00010202
EBX=00000000 SS=016f ESP=0068e304 EBP=0068e9ac
ECX=0000000d DS=016f ESI=00000000 FS=439f
EDX=40000404 ES=016f EDI=01b357b4 GS=0000
Bytes at CS:EIP:
80 7c 08 ff 0a 75 78 ff 4d fc eb 73 8d 45 fc 8d
Stack dump:
00000000 01b357b4 00000000 00000000 00000000 00000000 0095b7a0 00000000 0068e32c
00000100 00030d11 01de3268 60afad04 0095bd00 0068e28c 03205250

Expected Results:

The blank option should be selected.  Under IE5 this blank option within the
combo box is not available.

Reproducibility:

Everytime.

Build Date & Platform Bug Found:

14/04/2000 09 - Windows 98

Additional Builds and Platforms Tested On:

Tested under IE5 and works fine.

Additional Information:

Comment 1

[Sean Richardson]

Odd. Using what I presume is the same build, the one in the 2000-04-14-10-M16
directory under ftp://ftp.mozilla.org/pub/mozilla/nightly/, I did not
see blank options in the comboboxes at all, testing on WinNT. I'm running
the Talback .zip version.

Excellent bug reporting, [e-mail], sorry I couldn't 
reproduce the problem. Where in the list does the blank item show up for you?

Comment 2

[Jesse Ruderman]

Attachment: Simpler test case

Comment 3

[Jesse Ruderman]

Notice that the browser doesn't crash as soon as the test case is loaded, even 
though the option with no text is selected by default. you have to select it 
manually to produce the crash.

Let's try the "HTML Form Controls" component.

Comment 4

[Jesse Ruderman]

Only happens in combo boxes, btw - if you add SIZE=2 to the select tag in the 
test case, no crash occurs.

Comment 5

[Asa Dotzler [:asa]]

reassigning

Comment 6

[rods (gone)]

work for me

Comment 7

[ckritzer (gone)]

Marking VERIFIED FIXED on:
- MacOS9 2000-07-06-08-M17 Commercial
- Linux6 2000-07-07-10-M17 Commercial
- Win98  2000-07-07-13-M17 Commercial