I may have found a minor bug and thought I should report it.
Say I want to remove a Header or Query Param in Connections, Web APIs:
I hit the "negative" icon on the right and it is removed from the display, BUT the Update button is grayed out (see pic below):
In order to delete it, I need to:
1. Modify the Header or Query Param
2. the Update button is enabled!
3. now I can delete
Let me know if you have questions.
I will pass it along, thanks.