Request runs indefinetly when url starts with "{"

Was trying to use variable for the hostname and entered it in format of "{{ HOST }}" without realising the the curly brackets were not needed. It wasn't clear right away to me that the variable with slightly more bright and heavier font.

When sending the request with "{{HOST}}" as the host the request keeps going indefinetly. Only restarting the app will make the "request in progress" indicator stop. Setting request time out in preferences doesn't affect this case at all.

Would love to have a "Cancel request" button.