Limitations

Since the Portal UI is implemented in ClojureScript, it also adopts some of its platform limitations.

Dates

Dates captured from your host platform are interpreted as js/Date in the Portal UI. Therefore, as documents by this ClojureScript issue, they are potentially interpreted against a different calendar.

Longs

Since JavaScript doesn't support the full range of numbers provided by longs, integers outside of a certain range must be boxed and shipped as string to the UI. This precludes them from participating in viewers that expect js/Number.

Lazy Values

Lazy values that contain exceptions will cause Portal's internals to break if allowed to flow into the tap-list. By trying to partially realize lazy values before accepting them, and rejecting any exceptional values, Portal can keep working. However, this only applies to the default tap-list. Since Portal can be opened with any value, it is still possible to break that instance of Portal, but it should be contained to that specific instance.