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"Empty" DOMDocument

Hi all-

I'm working on replacing a perl-based HTML parser (just pulling out links, etc) with a webkit-based technique using [frame DOMDocument] in the webview didFinishLoadForFrame delegate.  I have everything working quite well, *except*, some web pages seem to generate "empty" DOMDocuments... the document responds to URL correctly, but not much else (no title, nothing comes back from getElementsByTagName, etc.)

I'm fairly new to the DOM and webkit's generation of it.  Is there any specific reasons a page will not generate a DOM, or ways that I can detect or avoid the situation?

For a failure test, I was loading this page:

http://www.positivespinmedia.com/shareware/Pandora/index.html

and parsing with this code:

 DOMNodeList *list = [[frame DOMDocument] getElementsByTagName:@"a"];
    int i = 0, j = [list length];
NSLog(@"items: %d", j);
    for(i = 0; i < j; i++){
        NSString *rawLink = [[[[list item:i] attributes] getNamedItem:@"href"] nodeValue];
        NSURL *formedURL = [NSURL URLWithString:rawLink relativeToURL:[NSURL URLWithString:_sourceURL]];
        if(([[formedURL scheme] isEqualToString:@"http"]) || ([[formedURL scheme] isEqualToString:@"https"])){
            NSLog(@"%@", [formedURL absoluteString]);
        }
    }

[list length] returns 0 on the referenced page.  It works great on other pages.

Thanks for any help!

John


John Pannell

Positive Spin Media

http://www.positivespinmedia.com


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