The main space header has issues. It has been this way since at least last night, is evident when using Chrome, and is persistent across multiple computers (so I don't think it is just me).
It does make it difficult to get to the discussion zone https://area51.meta.stackexchange.com/ Not urgent, but posting this for reference.
Not an expert on this, the best I can find on F12 is this
Active resource loading counts reached a per-frame limit while the tab was in background. Network requests will be delayed until a previous loading finishes, or the tab is brought to the foreground. See https://www.chromestatus.com/feature/5527160148197376 for more details
Failed to load resource: net::ERR_CONNECTION_REFUSED
I logged on to dba.stackexchange.com with IE then went to Area51, there is no header. Visible