340012 - Form input element's 'value' attribute and 'value' property do not synchronize

Status: RESOLVED DUPLICATE of bug 277899

(Firefox :: General, defect)

Description

[Weston Ruter]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.3) Gecko/20060426 Firefox/1.5.0.3
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.3) Gecko/20060426 Firefox/1.5.0.3

A form control's 'value' HTML attribute and its 'value' DOM property are not linked consistently. In IE6, the two values are always the same; in Opera, changing the 'value' DOM property does not synchronize with the 'value' attribute, but setting the 'value' property always updates the associated attribute; Mozilla's behavior is even worse than Opera (unless IE's behavior is itself an error). If only the value attribute is changed the values continue to be synchronized (as in Opera), but as soon as the 'value' property is set, then the link is broken and thereafter setting the 'value' attribute will not update the 'value' property.

Reproducible: Always

Steps to Reproduce:
1. Change the input's value attribute
2. Change the input's value property
3. Compare input.value and input.getAttribute('value') and notice they are different

Actual Results:  
input.value and input.getAttribute('value') are not identical

Expected Results:  
input.value and input.getAttribute('value') should always produce the same value

Possibly related to Bug 111486.

Comment 1

[Dave Townsend [:mossop]]

No, The spec says that changing .value should not affect the attribute. IE is disobeying the spec.


*** This bug has been marked as a duplicate of 277899 ***