Welcome Page - Iframe

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Welcome Page - Iframe

L4 Transporter


we want to include a (external or internal) website via iframe in the welcome page. My test HTML site:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN"
<TITLE>Palo Alto Networks - GlobalProtect Welcome Page</TITLE>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<link rel="stylesheet" type="text/css" href="/styles/falcon_content.css?v=@@version">
td {
font-family: Verdana, Arial, Helvetica, sans-serif;
font-weight: bold;
color: black; /*#FFFFFF; */
.msg {
    background-color: #ffff99;
    border-width: 2px;
    border-color: #ff0000;
    border-style: solid;
    padding-left: 20px;
    padding-right: 20px;
    max-height: 150px;
    height: expression( this.scrollHeight > 150 ? "150px" : "auto" ); /* sets max-height for IE */
    overflow: auto;
.alert {font-weight: bold;color: red;}

<BODY bgcolor="#F2F6FA">
<div align="center">
  <h1>Palo Alto Networks - GlobalProtect Welcome Page</h1>
<iframe src="http://www.whatismyip.com" width="70%" height="400" name="Test">


<div id="formdiv">

With this config it shows me just a white frame without any content....

Is some one familiar with this kind of confgiuration?



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L4 Transporter


finally i got an information from PaloAlto: iframes are not supported! Feature request is now open...


View solution in original post


L4 Transporter

Any idea how to include a frame/content in the welcome page?

Your code works in an slightly older firefox so it seems valid.

Which browser do you use and do you have any plugins installed for that (that could block this kind of cross-site loading)?

Or do you perhaps use https for this page (where your code shows), im thinking if iframe in your browser perhaps is blocked when using https?

Hello mikand,

we want to use the iframe in the welcome page of the GlobalProtect Client.

Have Firefox and IE 8/9 (WIN XP/7) installed on the client. But it shows just a white frame without any content. HTTPS is not being used.

Hopefully there's a way to include frames into the welcome page.

Just to verify... the code in your first post in this thread is from when you use "show source" in your browser?

Im thinking if something went lost in translation when you inserted your code into the PA device or for that matter when the PA device is parsing this code before returning it to the client?


this code is the original one from PA. I exported the welcome page, modified it (see in the first post - the red letters) and then import it back. Its not the code of "view source"....

L4 Transporter

"When a webpage is loading an iframe, it displays a white background until when the iframe’s page is loaded". This is what happen with the first source code i posted.

Tried another html code:

<?xml version="1.0"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"/>
div{background-color:red; padding:5em;}

<iframe  style="visibility:hidden;" onload="this.style.visibility = 'visible';" src="http://www.it-things.com" ></iframe>

With this code i can see, that GlobalProtect doesn't try to load the welcome page iframe...

Could you verify with tcpdump or by running live http header or similar plugin within your browser how the http headers that are being sent towards your client looks like?

Im thinking if any of Security Headers on the Top 1,000,000 Websites: March 2013 Report could be a cause of this behaviour?

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find in the attachment the live http log. Used my firefox.

IE and Firefox don't have any problems to display the HTML code (the last i sent). The GP Agent Welcome Window is the problem. It doesn't matter if i insert any internal oder external website - it doesn't want to load the iframe.

L4 Transporter


just sniff the traffic with wireshark during the client connects with GP and the welcome page appears. No any HTTP request are made. So it seem like the welcome page is a offline thing....Sadly! Or PaloAlto blockes any content loading in the Welcome/Help Page....really sadly...

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