# How-To: Implementing hideFlashCallback to support "wmode=window" - Facebook Developers

<https://developers.facebook.com/blog/post/637/>

- Host: [developers.facebook.com](https://links.thingelstad.xyz/hosts/developers.facebook.com/)
- Saved: January 26, 2012 (2012-01-26T17:40:26Z)
- Record: https://links.thingelstad.xyz/links/f115ab1396e4/
- JSON: https://links.thingelstad.xyz/links/f115ab1396e4.json

## From the page (probably an excerpt, not Jamie's words)

One of the Pro-Tips we mentioned late last year in our Games Tutorial to Developers creating Flash based Apps was to use wmode=opaque whenever possible. Setting wmode to any value other than "opaque" or "transparent" prevents any HTML content from being displayed at a higher z index than the Flash object. This results in Dialogs, Notifications and Ticker Flyouts being displayed under the Flash object and creates a pretty poor user experience on Canvas.

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## Elsewhere

- Wayback Machine: https://web.archive.org/web/*/https://developers.facebook.com/blog/post/637/