* In layer properties, you MUST add a "`openWebsite`" property (of type "`string`"). The value of the property is the URL of the website to open (the URL must start with "https://")
<figcaptionclass="figure-caption">The iFrame will only open if the user clicks Space</figcaption>
</figure>
If you set `openWebsiteTriggerMessage: your message action` you can edit alert message displayed. If is not defined, the default message displayed is 'Press on SPACE to open the web site'.
### Setting the iFrame "allow" attribute
By default, iFrames have limited rights in browsers. For instance, they cannot put their content in fullscreen, they cannot start your webcam, etc...
If you want to grant additional access rights to your iFrame, you should use the `openWebsitePolicy` property. The value of this property will be directly used for the [`allow` atttribute of your iFrame](https://developer.mozilla.org/en-US/docs/Web/HTTP/Feature_Policy/Using_Feature_Policy#the_iframe_allow_attribute).
For instance, if you want an iFrame to be able to go in fullscreen, you will use the property `openWebsitePolicy: fullscreen`
<figcaptionclass="figure-caption">The generated iFrame will have the allow attribute set to: <code><iframe allow="fullscreen"></code></figcaption>