What happens if a remote is down during a Host Apps Start up with SSR enabled?

[rollb82]

I am working on a new project and thought it would be great to try ModernJS with SSR.

I have noticed that the Host Application can't start if the remote is down.

I have seen information about creating a Fallback manifest.json file however that only works if the Host App starts and the remote goes down afterward.

I am wondering if I am missing something. I saw a post from Zack Jackson and saw a number of examples for fallbacks, but I don't think any would work during application startup. My assumption is we would want to have all remotes working before deploying the host which consumes remotes.

Thanks for the help and any suggestions!