i'm trying to use policies.json to whitelist pages user can visit. When I apply changes, after browser restart I see it reacts (I use correct file), I use the template of: { "policies": { "WebsiteFilter": { "Block": ["<all_urls>"], "Exceptions": [ .... here is see on adding an exception item - it is allowed, on removing it is not. I have a system running on http://localhost:8090. I tried multiple patterns and none of them allowed me entering my page: "*://localhost:*/*", "*://127.0.0.1:*/*", "http://127.0.0.1:8090", "http://localhost:8090", "*://www.localhost:*", "*://www.localhost:*/*", "http://localhost:8090", "http://localhost:8090/*", "https://localhost:8090/", "https://localhost:8090/*", "localhost:8090", "127.0.0.1:8090", when changing: "Block": ["<all_urls>"], to "_Block": ["<all_urls>"], I can open my page. I checked in console if there are any requests to other domains/ports - no. It makes single GET request to http://localhost:8090. What am I doing wrong?