Bug 20184 – SELECT with no name generates invalid query string

• Component: Forms
• Status: RESOLVED FIXED

[Garrett Smith]

A SELECT element with no name is submitted. 
A SELECT with a selected, disabled OPTION submits the disabled OPTION.

This results in the unsuccessful controls generating values in query strings and invalid query strings:

 ?=invalid&=&wrong=disabled#done

 *  "invalid" is the selected OPTION of a SELECT that has no name
 * "&=" is the selected OPTION with no value of a SELECT that has no name
 * "wrong=disabled" is the selected OPTION with the value "disabled" of a SELECT with the name "wrong"

Instead, the submit with no name should not be submitted and disabled OPTIONS should not be submitted.

If the selected option does not have a value, the browser may consider the select to be unsuccessful. This would result in either the query string "wrong=" or no query string. 

If there is no OPTION selected, the browser may select the first OPTION or the first enabled OPTION. This would result in the test case:
 1) (no query string)
 2) wrong=enabled (only if the enabled OPTION were default selected).

|  If a control doesn't have a current value when the form is 
| submitted user agents are not required to treat it as a successful 
| control." [1]

[1] HTML 4.01, Forms, Successful Controls.
http://www.w3.org/TR/html401/interact/forms.html#h-17.13.2

[Garrett Smith]

Created attachment 22499 [details]
Test Case Showing Problem

?=invalid&=&wrong=disabled#done

Also of note: in Firefox, the disabled options are not selected unless they have the selected attribute. This is perfectly valid and affords the developer more control and flexibility.

Safari Version 3.1.1 (4525.18), navigator.userAgent: 
Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10_4_11; en) AppleWebKit/525.18 (KHTML, like Gecko) Version/3.1.1 Safari/525.18

[Garrett Smith]

Created attachment 22501 [details]
Test Case Showing Problem

Bring in the bug id "id=" param for bugs.webkit.org bug id.

[Mark Rowe (bdash)]

<rdar://problem/6104686>

[Garrett Smith]

Created attachment 22512 [details]
Test Case Showing Problem

[Garrett Smith]

Created attachment 22517 [details]
Test Case Showing Problem

[Garrett Smith]

Created attachment 22519 [details]
Test Case Showing Problem

[Gérard Talbot (no longer involved)]

There is an identical bug at bugs.kde.org:
B u g 148981: Do not submit disabled option in combobox
https://bugs.kde.org/show_bug.cgi?id=148981

[Alexey Proskuryakov]

Created attachment 27697 [details]
proposed fix

This patch fixes the "select with no name" issue. As far as "disabled selected option" goes, this is a separate issue that needs to be discussed in a separate bug, especially since we match IE behavior here.

[Alexey Proskuryakov]

Comment on attachment 27697 [details]
proposed fix

Oops, I clicked the wrong option when submitting the patch! Marking for review now.

[Darin Adler]

Comment on attachment 27697 [details]
proposed fix

r=me

[Alexey Proskuryakov]

Committed revision 41135.

[Alexey Proskuryakov]

*** Bug 19005 has been marked as a duplicate of this bug. ***

[Garrett Smith]

Created attachment 59190 [details]
Simpler testcase.

Submitting better testcase to FIXED bug for future reference/clarity -- the previous testcase was confusing.

[Alexey Proskuryakov]

*** Bug 21478 has been marked as a duplicate of this bug. ***