svenR-11

Problem:
I am trying to:
Add a translation to a post/page.

1. Write the post title and content for a new post.
2. Click Save Draft or Publish.
3. Add a translation to that post.
4. Click the plus icon on language.
5. WordPress opens the translation page
6. Write the title and content.
7. Press Save Draft or Publish.

I expected to see:
Draft saved or post published.

Instead, I got:
Updating failed. You are probably offline.

- - -

I added a screenshot with the console log. It seems that WPML can't connect with the REST API and it fails. GET shows the REST url, but it's missing a slash.

Solution:
This sounds like a known issue, which will be fixed in the upcoming version. Please check if the mentioned workaround from here solves it for you temporarily: https://wpml.org/errata/rest-api-endpoint-issue-when-permalink-structure-is-missing-a-final-slash/

Relevant Documentation:
https://wpml.org/errata/rest-api-endpoint-issue-when-permalink-structure-is-missing-a-final-slash/