@tomibaum – Sorry, I haven’t seen/heard of any similar issues. In general practice, that likely isn’t possible, at least not as described. Specifically our plugin doesn’t do anything browser side, only on the server prior to sending content to the browser.
As such there is almost no way a browser specific issue should come up related to global restrictions being applied on the user side.
Without a more in depth description of what the user is facing its hard to say what might be going on but the first things that come to mind are:
- Cached redirect – In general it shouldn’t occur, but if he tried to go to a page and was redirected, if the redirect was modified or extra headers were sent for the redirect instructing the browser to cache it, it might redirect from that page even after logging in. Our plugin doesn’t offer or do this, but we call WP functions that do allow it while redirecting.
- Your using a caching plugin or service that is possible overly optimized and not bypassing caches when logged in every time.
- His browser cookies are corrupted, and the WP login cookie simply isn’t getting set properly.
Maybe try having him:
- Go directly to the login page first (/wp-login.php if it hasn’t been blocked).
- Clear his cookies and browser saved data for the site.
- Has he tried an incognito tab? (verify its not cookie/browser cache related)
- Tried a different internet connection/pc etc? (ensure its not something with his user account)
Hope that helps, but honestly I’m gonna defer to my original statement, very unlikely our plugin is related to the issue directly, even less so since you tested on Edge without issue yourself. More likely an issue specifically for this person, either user account, caching/cookies, browser config, his own internet/firewall/proxy etc.