Deleting a JIRA Workflow Status results in a HTTP 400 when using Microsoft IIS

Summary

Microsoft IIS can return a HTTP 400 if a DELETE HTTP method is requested with a payload. The JIRA Workflow designer will use this approach when deleting a status.

Environment

Microsoft IIS 7.5 is serving traffic on front of JIRA.

Steps to Reproduce

Delete a workflow status.

Expected Results

The status is successfully deleted and returns a 200.

Actual Results

The delete is submitted with a payload and as such IIS will return a 400 as it ignores the request, returning a 400 as described in JIRA Functionality fails due to HTTP 400 Bad Request Error.