Pressing Esc does not cancel in-progress Address Box queries

[ChrisNZL]

Issue in Fauxbar 1.8.1.

Scenario:

1. Type several characters into the Address Box to search your history and bookmarks.

2. After a few characters, and while the results below the Address Box are being updated, press Esc with the intention to cancel searching.

3. The results disappear as expected, but the queries-in-progress continue on, making the results appear again.

Desired outcome:

• Results should stop appearing after pressing Esc.