Is there a way to get cross domain of web page inside of Iframe in webbrowser control?
I've been searching around the way to at least know what domain the iframe (with cross-domain) in the web page has, using .NET WebBrowser control.
I'm using .NET 2.0 Visual Studio 2005 C#
For instance in the webbrowser control, it has web page with iframe with different domain.
I want to get the value "www.google.com"
http://localhost/index.html
<html>
<head></head>
<开发者_JS百科;body>
<iframe src="http://www.google.com/foobar"></iframe>
</body>
</html>
I tried to get domain and getting UnauthorizedAccessException due to Cross Domain Scripting according to MSDN.
HtmlWindowCollection frames = webBrowser1.Document.Window.Frames;
if (frames.Count > 0)
{
for (int i = 0, j = frames.Count; i < j; i++)
{
//if the iframe in the page has different domain
if (frames[i].Document.Domain != this.webBrowser1.Document.Domain)
{
MessageBox.Show("iframe has different domain");
}
}
}
But looks like I can't even get access to the domain.
I've tried Url too frames[i].Url and still same exception.
Does this mean I can't really get any information from the Iframe other than it is an iframe? Is there a way to detect if an iframe has different domain without throwing exception?
This is a security feature of browsers to stop people being scammed. Otherwise you could embed their favourite bank website in an iFrame and extract data from it.
加载中,请稍侯......
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