Not that I know of. You'll need to tunnel through the proxy to really check the connection. I either do a proxy checker site to make sure nothing is leaking, or I just do the simple GET request against the site(s) I'm working with/on.
@stephenperry18 First of all you need to get textbox content with "Get Element Text" action.
Then use "If" action to check if it is empty.
You can construct condition yourself like it is shown on following gif:
0_1528972086841_CheckIfNotEmpty.gif
oh wow thank you so much :) I really appreciate it