201603 - Can't back out of a mouse click when input type="image"

Status: RESOLVED DUPLICATE of bug 53966

(Core :: DOM: Core & HTML, defect)

Description

[Michael Newton]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4a) Gecko/20030410 Phoenix/0.5+
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4a) Gecko/20030410 Phoenix/0.5+

Not sure if this a Mozilla-wide problem or just Phoenix.  But...
On a standard form button, if you mouse down but then move away from the button,
the button "pops" back up once the cursor is no longer over it; ie the button is
only activated if the mouseup event occurs over the button.
On an image button, no matter where the cursor is, the button will be activated
on mouseup.

Reproducible: Always

Steps to Reproduce:
1.click an image button and hold the mouse down
2.move the mouse off the button
3.release the mouse

Actual Results:  
button is activated

Expected Results:  
button is not activated

Comment 1

[Boris Zbarsky [:bzbarsky]]

*** This bug has been marked as a duplicate of 53966 ***