URL Isolation Method  

When you set an iView’s Isolation Method property to URL, the iView is written into an iFrame, which is inserted into a container on the page.

Each iFrame works independently. One iFrame can run a script, for example, or any other event, without interfering with the content in the other iFrames, although iViews can interact through client-side events.

Features and Implications

            iViews are not encoded in the page HTML

¡        PageBuilder generates an iFrame and sets the source attribute to point to the iView URL

¡        iView’s content is generated after an additional server request

¡        PageBuilder writes content into the iFrame on the client side

            Interactions and reload actions on the iView do not affect the rest of the page

·        Flicker-free pages

·        Enhanced performance

·        PageBuilder has full control over the appearance of the iView content

¡        Page determines iFrame size

¡        Administrator has three page settings to control iView height: fixed / full page / to fit iView content

¡        Page can add vertical and horizontal scrollbars to iFrame

·        Supports only client-side events

“Parameters to Forward from Page Request” Property

An iView that is set to the URL isolation method is isolated from the page request and does not automatically receive the parameters from the page request.

The Parameters to Forward from Page Request property lets you define a set of URL-based parameters that should be forwarded from a portal page request to the iFrame displaying the current iView.

Use the property to define page request parameters as follows:

·        An asterisk (*) ® pass all the parameters

·        An empty field ® pass no parameters

·        An asterisk, comma, and parameters separated by a comma (*,param1,param2) ® pass all parameters except those listed

·        Parameters separated by a comma (param1,param2) ® pass the paramList

Limitations

Content-loading events on embedded iViews cause the loss of iViews that are in iFrames. It is not recommended that you put embedded and isolated iViews on the same page.

Since EP5.0 iViews are URL-isolated iViews, if you want to support them, add them to pages that contain only URL-isolated iViews.