[HtmlUnit] [ htmlunit-Bugs-793340 ] 'about:blank' and '' can not be used for frames and windows

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Bugs item #793340, was opened at 2003-08-22 18:25
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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=448266&aid=793340&group_id=47038

Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Alexei Goussev (gousseff)
Assigned to: Nobody/Anonymous (nobody)
Summary: 'about:blank' and '' can not be used for frames and windows

Initial Comment:
'about:blank' and '' can not be used ínstead of url for 
frames and windows.

Following htmls cause an exception:

1.         	<frame  name="results"
                        title="Results"
                        scrolling="yes"
                        marginwidth="0" 
                        marginheight="0" 
                        border="1" 
                        framespacing="1"
                        noresize
                        src="about:blank">

2a.          <a href="http://htmlunit.sourceforge.net" 
target="htmlunit" title="HtmlUnit (Presented in a New 
Window)" 
onmouseover="javascript:window.status='HtmlUnit 
(Presented in a New Window)'; return true" 
onfocus="javascript:window.status='HtmlUnit (Presented 
in a New Window)'; return true" onmouseout="javascript: 
window.status=''; return true" onblur="javascript: 
window.status=''; return true" onclick="javascript:var 
win = window.open
('','htmlunit','height=500,width=750,top='+
((screen.height-(screen.height/1.618))-(500/2))+',left='+
((screen.width-750)/2)+',scrollbars,resizable');win.focus
()">HtmlUnit</a>

2b.          <a href="http://htmlunit.sourceforge.net" 
target="htmlunit" title="HtmlUnit (Presented in a New 
Window)" 
onmouseover="javascript:window.status='HtmlUnit 
(Presented in a New Window)'; return true" 
onfocus="javascript:window.status='HtmlUnit (Presented 
in a New Window)'; return true" onmouseout="javascript: 
window.status=''; return true" onblur="javascript: 
window.status=''; return true" onclick="javascript:var 
win = window.open
('about:blank','htmlunit','height=500,width=750,top='+
((screen.height-(screen.height/1.618))-(500/2))+',left='+
((screen.width-750)/2)+',scrollbars,resizable');win.focus
()">HtmlUnit</a>

Second example executes as following:
1. empty window named 'htmlunit' is opened
2. JavaScript does not return true -> url specified by 
href is called and received content is passed than to 
target, which is a previously opened 'htmlunit' window

in example 2a an exception will occur on win.focus(), 
cause there will be no ScriptObject for win (win==null)

in example 2b an exception will be thrown as 
jsFunction_open in ...Window will try to create an url 
from 'about:blank'

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