JavaScript FrameBuster Snippet

By  on  

Oftentimes you want to make sure your site isn't being IFRAME'd.  Sometimes it's for security reasons, other times it's so your site's content isn't being skimmed else, and other times it's...oh, who cares, you just want to do it.  Here's a short way to escape frames:

if (top.location != self.location) {
    top.location = self.location.href;
}

Uglify this and you get 63 characters of gold.  Simple, effective.

Recent Features

  • By
    Send Text Messages with PHP

    Kids these days, I tell ya.  All they care about is the technology.  The video games.  The bottled water.  Oh, and the texting, always the texting.  Back in my day, all we had was...OK, I had all of these things too.  But I still don't get...

  • By
    Create a CSS Cube

    CSS cubes really showcase what CSS has become over the years, evolving from simple color and dimension directives to a language capable of creating deep, creative visuals.  Add animation and you've got something really neat.  Unfortunately each CSS cube tutorial I've read is a bit...

Incredible Demos

  • By
    Page Visibility API

    One event that's always been lacking within the document is a signal for when the user is looking at a given tab, or another tab. When does the user switch off our site to look at something else? When do they come back?

  • By
    Sliding Labels Using MooTools

    A week back I saw a great effect created by CSSKarma: input labels being animated horizontally. The idea is everything positive: elegant, practical, unobtrusive, and requires very little jQuery code. Luckily the effect doesn't require much MooTools code either! The HTML A...

Discussion

  1. Sorry bit of a jacascript noob here – this sounds great but how would one implement it? Where does it go?

    Again apologies for what must sound a simple question.

    • Eric

      Just toss it at the top of your javascript file :). Really anywhere in your JS this would work.

    • Just don’t put it inside a function unless that your intention. For example if for some reason you want to give your users a chance to make sure the page isn’t iframed by clicking a button then you put that code in a function say unIFrameMe() and then call that function when onclick the button.

      In general, you’ll want this code to be outside of a function, so it is run when the js is loaded.

      EMILIO!

  2. Thanks for the answers re the javascript.

    htaccess solutions might be better as they are not so easily bypassed:

    To blocks all sites (including your own) from iframing your pages:

    Header append X-FRAME-OPTIONS "DENY"
    

    or to block any external site from iframing your pages:

    Header append X-FRAME-OPTIONS "SAMEORIGIN"
    
  3. You can also only block some of your urls with the x-frame-options header. Here’s an apache solution

    Header always append X-Frame-Options SAMEORIGIN # Block any site from applying an iframe.

  4. Apparently I didn’t use `pre` tags.

    Header always append X-Frame-Options SAMEORIGIN # Block any site from applying an iframe.
    

Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!