context in template shows no value

[ju187]

Defined a context in the configmap and the notification was trigger. However the .context.fieldname always shows this is with Argo rollouts. Here is the configmap for the notification
...
data:
context: |
region: "east"
environmentName: "staging"

service.webhook.form: |
url: http://172.20.2.210:4566/00000000000/canary-status-queue
headers:
- name: Content-Type
value: application/x-www-form-urlencoded

template.rollout-completed: |
webhook:
form:
method: POST
body: Action=SendMessage&MessageBody={"environment":"{{ .context.environmentName }}","rollout":"{{.rollout.metadata.name}}","status":"completed"}

{{.context.xxx}} are in several sample templates, does this field only work for ArgoCD?

[ppaez-life360]

I'm having the same issue using Slack. The same notifications-engine is supposed to be used by both, ArgoCD and Argo Rollouts, but it doesn't seem to work for the second one.