What steps will reproduce the problem?
(1) Search via Console's/Source's Cmd-F or Console/Network's filter bar
(2) Start typing a regex filter such as: /[1-3]

What is the expected result?
If the user intends to make a regex query, they don't write the ending / slash until the end.  That can lead to empty console view with no messages while typing.

What happens instead?
We could try to automatically insert the closing / slash, similar to how editors often autocomplete the closing ) when the ( is typed.