check if caching server is reachable before using

[dnikles]

💡 Description

If a caching server is given but is unreachable, Mist will fail to download the installer.

✅ Proposed solution

Check if a given caching server is reachable, and failover to not using the caching server if it is not.

🩹 Alternatives Solutions + Workarounds

Currently this can be accomplished with a script outside of Mist, then calling mist-cli with the appropriate option (or lack thereof)

ℹ️ Additional context

• Would you also like to see this implemented in Mist.app?:x:

[ninxsoft]

Makes sense! I'll see how much work is involved to default to no caching server, if the specified one is not accessible 👍