Resolving The Problem
To do this from the UI:
Login to DataPower and navigate to the domain generated by API Connect (APIMgmt_XXXXXXXXX)
Open the Multiprotocol Gateway webapi
Edit the Front side Handler webapi-https
Click the checkbox next to the Option URL with .. under the Allowed Methods and Versions Section
Unfortunately, there is not a presently a feature to persist modifications to the API Connect domain after you remove it and readd it to the Gateway service.
You may also consider using a SOMA request to make this modification.
The attached sample request can be sent to the XML Management interface to change the setting without having to manually edit on the DataPower UI.
The file named request.xml will add the dot dot method on to the FSH webapi-https. You will need to modify the file to add your domain name in line 5 and run the command:
curl --data-binary @request.xml https://<hostname>:5550/servic
11 April 2019