https://app.camunda.com/jira/browse/OPT-218?focusedCommentId=68055&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-68055
handle 0 in duration heatmap response: https://stage.optimize.camunda.com/process/assignLead:41:5d28a02b-183b-11e7-9eb8-0aa2e56f42b1#
OPT-305 "No Data" is displayed briefly before heatmap data is loaded
OPT-218 I can see duration heatmap in Optimize