No longer working in GitHub enterprise
Not working with GitHub Enterprise Server 2.22.5
Not working for me as well with GitHub enterprise. Resetting domains doesn't fix the issue.
Could you elaborate on the issue you're experiencing? Does the extension not work at all, or some styles are not applied properly?
Doesn't work at all. It will inconsistently register on the page and then stop working.
The plugin will appear to work about half of the time, but will appear to do nothing to what seems like a random selection of pages, possibly depending on the exact content of the page.
For example, I was on a PR page, and after doing some commenting, the page went back to normal styling. On a separate window with the main repo page open, the dark theme was working until I refreshed. Notably, a change that happened upon the refresh was a branch was merged:

Currently on GitHub Enterprise Server 3.1.18.
Sorry I never remembered to get back to this thread.
Could you also provide the browser you're using as well as the version of the GitHub Dark Theme extension?