After upgrading to 4.2, custom slash command is no longer working. This custom slash command is pointing to the same box as the Mattermost Server.
I saw the breaking changes @jasonblais posted.
Would the following “Breaking Change” for v4.2 be causing the issue? https://docs.mattermost.com/administration/changelog.html#breaking-changes
Here is the error message I am receiving:
Post http://localhost:9090/api/webex: address forbidden
If this is the case, would the solution be to add the following to the Server Settings? Is the port needed?: