CE Backport: Update Web IDE config to accept ports
What does this MR do?
This MR ports the CE code from https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/9818
What are the relevant issue numbers?
Refs https://gitlab.com/gitlab-org/gitlab-ee/issues/10179
Does this MR meet the acceptance criteria?
- [ ] Changelog entry added, if necessary
-
Tests added for this feature/bug -
Conforms to the code review guidelines -
Conforms to the merge request performance guidelines -
Conforms to the style guides (https://about.gitlab.com/handbook/engineering/quality/guidelines/test-engineering/).
Edited by Francisco Javier López