The ERR_CACHE_MISS seems to be just a minor Chrome bug unrelated to Connections:
The google not defined error … did you by chance disable the Google Maps API option on the Connections : Settings admin page under the Advanced tabs? If you did, please re-enable it.
As for the other issues you’ve stated … they would not be caused by the errors reported in the Chrome console and without a link to the page with the issue I’d couldn’t even give a guess, sorry. If you can share a link to the page, I’ll take a look.