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IFrame buster files - what's their purpose?

Asked 2009-11-24T20:50:46.157
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Looking at a few advertising companies (DoubleClick, Atlas), I've come across the concept of iframe buster files, that are hosted on the same host as the ad publisher (one example: http://www.adopstools.com/ibusters/atlas/atlas_rm.htm, and there's a lot of JS code that works with that page).

I read that they're used to dynamically resize the iframe. Is that all there is to iframe busters? Does hosting them on publisher's host help with JS cross-domain restrictions?

Added: I'm referring to the use case described here: http://blog.operative.com/?tag=iframe, and not just changing the iframe source document to the top level.

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What the iFrame Buster does is it allows an expandable banner to come outside of it's Ad Unit dimension. For rg. if you have a 300x250 ad slots and you have an 300x250 ad banner that expands to 300x500 on mouse over or on click then iFrame buster allows it break that 300x250 boundaries and give room to the banner to expand by 300x500.

Doubleclick iFrame buster us generally required if you have a Rich Media Creative like a Pushdown, PubBar or Expandable being hosted and served/setup in DART Studio.

Atlas has their own iframe buster code, MediaMind has addineyev2.html and similarly FlashTalking and other have theirs which are required to be hosted on the server where the ads are going to run.

answered 2012-02-23T23:28:30.250

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