Get Recaptcha2 Iframe HTML but always EMPTY using GeckoFX Browser in vb.net -


i using latest geckofx-45 browser vb.net.

my problem: can not html of iframe.

here code:

'open recaptcha2 test site browser.navigate("http://patrickhlauke.github.io/recaptcha/") 'wait loading (all ways know) browser.navigatefinishednotifier.blockuntilnavigationfinished() dim maxtimeouttime datetime = datetime.now.addseconds(4) while datetime.now < maxtimeouttime system.windows.forms.application.doevents() system.threading.thread.sleep(100) end while while browser.isbusy() system.windows.forms.application.doevents() system.threading.thread.sleep(100) end while     'getting html of iframe empty: each _e geckoiframeelement in browser.domdocument.getelementsbytagname("iframe") if _e.getattribute("title") = "recaptcha widget" dim html = _e.contentdocument '-> empty   dim html2  = _e.outerhtml '-> html not include content of iframe  exit end if next

the site displayed in browser , recaptcha2 iframe loaded completly , ready how can access programatically?

thank much

use contentwindow.document instead of contentdocument. code shoud be:

dim ifr_dom geckodomdocument dim ifr_html string each ifr geckoiframeelement in browser.domdocument.getelementsbytagname("iframe")     if ifr.getattribute("title") = "recaptcha widget"         ifr_dom = ifr.contentwindow.document          'domdocument has no outerhtml property use         ifr_html = ifr_dom.getelementsbytagname("body")(0).outerhtml         'or if above not work, use code below         'ifr_html = ifr_doc.getelementsbytagname("body")(0).outerhtml         exit     end if next

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