spinnaker: pipeline with bracket can't be started

Cloud Provider

kubernetes

Environment

I am running Spinnaker on AWS to deploy into k8s.

Feature Area

Pipelines

Description

My pipeline name is [stag] Deploy console, then I can’t start the pipeline. And I got the error in browser:

Request:
URL:https://spinnaker.llsops.com/gate/pipelines/xxapp/[stag]%20Deploy%20staging%20console
Request Method:POST
Status Code:500 

Response:
{"error":"Internal Server Error","exception":"java.lang.IllegalStateException","message":"Could not get HttpServletRequest URI: Illegal character in path at index 36: http://127.0.0.1:8084/pipelines/neo/[stag]%20Deploy%20staging%20console","status":500,"timestamp":1506756366375}

But (stag) Deploy console is OK.