解决iframe的frameborder在chrome/ff/ie下的差异_javascript技巧

var iframe = document.createElement("iframe");
iframe.id = "frame-" + index;
iframe.src = url;
iframe.width = "100%";
iframe.marginwidth = "0";
iframe.scrolling = "no";
iframe.frameborder="0";

使用IE中“查看选定区域源代码”发现创建的iframe代码是