Using iFrame

I am trying to get an iFrame to show up on my stage. Saw from another post the code, but just want to make sure my code is right, here is what the example was

So, let's say you have a symbol mySymbol, an instance of this symbol called mySymInstance, and a Rectangle within the mySymbol symbol definition.

sym.getSymbol("mySymInstance").$("Rectangle").html("<iframe src="http://myurl/"></iframe>");

and this is what i put to test it

sym.getSymbol("products").$("productFrame").html("<iframe src=''http://myurl/"></iframe>");

Am i thinking right?