SP.RequestExecutor.iFrameSourceUrl property (sp.requestexecutor.js)
Gets or sets the iFrame source URL from the server.
Applies to: JavaScript | SharePoint Foundation 2013 | SharePoint Server 2013
var value = SP.RequestExecutor.get_iFrameSourceUrl()
SP.RequestExecutor.set_iFrameSourceUrl(String value)
Return value
STRING
The iFrame source URL