Good afternoon,

I am building a web application with UmbracoCMS, and I am hoping you can help me with some issues.

I must build a web application divided between two different Umbraco Instances, they can't share the same website.com/umbraco or the same database. They really have to be completely separated. However, the user should believe it is one single domain. I tried using instance A as an iFrame inside instance B, but it seems Umbraco A is somehow preventing itself from being used as an iFrame, as I had no problem using some other websites as iFrames. Is there any way to stop Umbraco from doing this?

Instance A would only "require" part of the url. For example, instance B would be www.website.com and instance A would only be used once the user would navigate to www.website.com/instanceb (that would not exist in instance B, but only in instance A). I couldn't find a way to make two different instances share the same url. Is this possible?

Another option, possibly simpler, would be to navigate between instance A and B as two completely different websites with different urls, but in one of them, display a fake/static url in the browser. For example, instance A would be have the www.website.com domain and instance B would have www.sub-website.com domain but somehow the browser would display www.website.com for both of them. Is this possible?

I'm rather new to both Umbraco and programming, forgive me if any of this is too obvious. Any help is appreciated! :)