A BB Code to use og: metas

[darnoldy]

Folks-

I want to use the og: data to display links to external pages. I thought I could make a BB code that uses javaScript to go get the info. It turns out I can't (at least without some help). It has been many ears since I tried to write javascript—and I'm really rusty.

First, I tried:

function getMetas (theURL){
    var theTarget = new document()
    theTarget.location.href = theURL
    alert(theTarget.location.href)
    if(theTarget.document.getElementsByName("meta").length>0){
        alert("meta tags "&& theTarget.document.getElementsByName("meta").length)
    }else{
        alert("no meta tags")
    }
}

which gave me an error that document is not a constructor.

When I tried:

function getMetas (theURL){
    var theTarget = window.open()
    theTarget.location.href = theURL
    alert(theTarget.location.href)
    if(theTarget.document.getElementsByName("meta").length>0){
        alert("meta tags "&& theTarget.document.getElementsByName("meta").length)
    }else{
        alert("no meta tags")
    }
}

The script does not give an error message, but the first alert displays the message "about:blank"—I assume because the page hasn't had time to load.

Am I missing something small or am I on a fool's errand? Any helpful hints you can share?