To respond to the answer by Joel,
If it is true that nanoflows are ment to be used in offline apps only then Mendix should stop trying to to sell them as microflows that run in your browser. Just take a look at their official documentation - https://docs.mendix.com/refguide/nanoflows. I will just quote one line
Nanoflows also offer great value in online applications (for example, for UI logic, validations, calculations, and navigation).
-Andrej
Hi Andrej, Nanoflows are used for Offline apps. It's really powerful (we're building an offline app for one of our customers) but it has it's limitations/things you need to know.
So using a nanoflow in an online page isn't really helping, I even think that's not ment to be.
The new Mendix app for iOS and Android contains the developer app functionality and supports offline apps. You know scanning the QR code from the modeler to test the app on your phone.