Expiring HTML Code

You can expire the HTML code, so that when a user views the source code it will not appear.  If the user is very savvy, or a hacker, he can retrieve the code with a key stroke (I think:  Alt-R.)

I've seen the following code expire HTML content.  This code does not work at this site.  I think the web server must enable the option.

<meta http-equiv="expires" content="Thu, 01-Jan-1970 00:00:01 GMT">


<META HTTP-EQUIV=Expires CONTENT="Mon, 01 Jan 1996 01:01:01 GMT">

Enabling Content Expiration on the Web Server

(I'm still having problems on my local Win NT server running IIS with content expiration enabled.  I'll share what knowledge I have until I find the total solution)

IIS (Microsoft Internet Information Server) - NT 4.0 Server w/Option Pack 4

  1. On the WinNT 4.0 Server that is running IIS (Option Pack 4):  Start, Programs, Windows NT 4.0 Option Pack, Microsoft Internet Information Server, Internet Service Manager.
  2. Within the browser, now go to the web server you want to enable content expiration.
  3. Next, choose the Web Site.
  4. With the Web Site highlighted (single click), right click and choose "Properties".
  5. Under the tab "HTTP Headers" click on the option:  "Enable Content Expiration".
    Expiration Options