Accepts an already-created popup window to use. If not specified, the SDK
will create its own. This may be useful for platforms like iOS that have
security restrictions around when popups can be invoked (e.g. from a user click event)
Optional timeoutInSeconds
timeoutInSeconds:number
The number of seconds to wait for a popup response before
throwing a timeout error. Defaults to 60s
Accepts an already-created popup window to use. If not specified, the SDK will create its own. This may be useful for platforms like iOS that have security restrictions around when popups can be invoked (e.g. from a user click event)