sequenceDiagram

[MrD0llaro]

I have found an issue on sequenceDiagram with activations

I aspected to view a box like https://mermaid-js.github.io/mermaid/#/sequenceDiagram?id=activations but the StackEdit not show the box.

for reproduce the issue this is the examle

sequenceDiagram
Alice->>John: Hello John, how are you? 
activate John
John-->>Alice: Great! deactivate John

my browser is : Google Chrome Versione 89.0.4389.82 (Build ufficiale) (x86_64) on mac

[chaitanya9186]

I got it working as follows:

I think you need to deactivate as well