Unset: Users can access all website URLs without restriction. Users can access all URLs except those that you block. Prevent users from accessing a list of blocked URLs. Developers can then add a policy for the specific functionality that should be blocked instead. You can then alert Chrome or ChromeOS support about what policies you want implemented. If you have a specific page you want to block, you should isolate what exactly in the page that you want to block from users. For details, see Disabled system features. Do not use URLallowList or URLblockList policies to do this. This blocks all the settings, not just part of it. If you want to block chrome://settings, chrome://os-settings or chrome-untrusted://, use the SystemFeaturesDisableList policy. Whenever a system component can process user-supplied data or content from the web, chrome-untrusted://URLs are used. This special url scheme allows Google to make sure any data not included with ChromeOS is handled safely with all the safeguards that the Chrome browser provides and that this data can't access functionality reserved for system components. For example, if you block the Wi-Fi subpage chrome://os-settings/networks?type=WiFi, users can still go to the page by using the navigation code within settings from the JavaScript console.ĬhromeOS system components use chrome-untrusted:// to process data from users or the web and blocking it is not recommended as it will break some system components. The c hrome://settings and chrome://os-settings URLs should be considered part of the operating system for ChromeOS and part of the browser for Chrome and should never be blocked.Įven if you do block some of them, some users might get around this policy by using JavaScript commands to navigate to these pages regardless. It is best practice to not block some URLs. For example, if you block an entire website and allow a specific webpage URL for that site, users might be able to access other content on that website. Sometimes, the blocklist and allowlist does not work as expected.
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