Why an embedded Visual asks for a login

When you embed an Informer chart, table, or Dashboard in another website with Generate External Link, users may hit an authentication pop-up when they try to View Data and export it.

This happens when Informer's domain differs from the domain of the site it is embedded in. Because the domains differ, the browser prevents Informer from setting an authentication cookie on the main page, so downloading data prompts for a username and password.

For example, if the main page is at http://sharepoint.newco.com and the Informer iframe is at http://www.newcoreporting.com, the domain names differ, which causes the issue.

To resolve it, put both sites on the same domain. For instance, give the Informer server a hostname like informer.newco.com and keep the other site on a different subdomain of the same domain, such as sharepoint.newco.com.